{"id":7101,"date":"2015-03-01T19:44:55","date_gmt":"2015-03-02T00:44:55","guid":{"rendered":"http:\/\/bangla.salearningschool.com\/?p=7101"},"modified":"2015-05-10T07:52:48","modified_gmt":"2015-05-10T11:52:48","slug":"%e0%a6%9c%e0%a6%be%e0%a6%ad%e0%a6%be%e0%a6%b8%e0%a7%8d%e0%a6%95%e0%a7%8d%e0%a6%b0%e0%a6%bf%e0%a6%aa%e0%a7%8d%e0%a6%9f-%e0%a6%b8%e0%a7%8d%e0%a6%9f%e0%a7%8d%e0%a6%b0%e0%a6%bf%e0%a6%82-%e0%a6%ae%e0%a7%87","status":"publish","type":"post","link":"http:\/\/bangla.sitestree.com\/?p=7101","title":{"rendered":"\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u09ae\u09c7\u09a5\u09a1 (JavaScript String Methods)"},"content":{"rendered":"<h2>\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u09ae\u09c7\u09a5\u09a1 (JavaScript String Methods)<\/h2>\n<p>\u09a8\u09df\u09a8 \u099a\u09a8\u09cd\u09a6\u09cd\u09b0 \u09a6\u09a4\u09cd\u09a4<\/p>\n<p>&nbsp;<\/p>\n<p>\u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u0986\u09aa\u09a8\u09be\u0995\u09c7 \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u09a8\u09bf\u09df\u09c7 \u0995\u09be\u099c \u0995\u09b0\u09a4\u09c7 \u09b8\u09be\u09b9\u09be\u09af\u09cd\u09af \u0995\u09b0\u09ac\u09c7\u0964<\/p>\n<p>&nbsp;<\/p>\n<h2>\u0995\u09cb\u09a8 \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u098f\u09b0 \u09ae\u09a7\u09cd\u09af\u09c7 \u098f\u0995\u099f\u09bf \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u0996\u09c1\u0981\u099c\u09c7 \u09ac\u09c7\u09b0 \u0995\u09b0\u09be<\/h2>\n<p>indexOf() \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u098f\u0995\u099f\u09bf \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u098f\u09b0 \u09ae\u09a7\u09cd\u09af\u09c7 \u09a8\u09bf\u09b0\u09cd\u09a6\u09bf\u09b7\u09cd\u099f \u09b2\u09c7\u0996\u09be\u09b0 \u09aa\u09cd\u09b0\u09a5\u09ae \u0998\u099f\u09a8\u09be\u09b0 \u0987\u09a8\u09cd\u09a1\u09c7\u0995\u09cd\u09b8 \u09aa\u09cd\u09b0\u09a6\u09be\u09a8 \u0995\u09b0\u09c7\u0964<\/p>\n<p>\u0989\u09a6\u09be\u09b9\u09b0\u09a3<\/p>\n<hr \/>\n<p>var str = &#8220;Please locate where &#8216;locate&#8217; occurs!&#8221;;<br \/>\nvar pos = str.indexOf(&#8220;locate&#8221;);<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>lastIndexOf() \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u098f\u0995\u099f\u09bf \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u098f\u09b0 \u09ae\u09a7\u09cd\u09af\u09c7 \u09a8\u09bf\u09b0\u09cd\u09a6\u09bf\u09b7\u09cd\u099f \u09b2\u09c7\u0996\u09be\u09b0 \u09b6\u09c7\u09b7 \u0998\u099f\u09a8\u09be\u09b0 \u0987\u09a8\u09cd\u09a1\u09c7\u0995\u09cd\u09b8 \u09aa\u09cd\u09b0\u09a6\u09be\u09a8 \u0995\u09b0\u09c7\u0964<\/p>\n<p>\u0989\u09a6\u09be\u09b9\u09b0\u09a3<\/p>\n<hr \/>\n<p>var str = &#8220;Please locate where &#8216;locate&#8217; occurs!&#8221;;<br \/>\nvar pos = str.lastIndexOf(&#8220;locate&#8221;);<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>\u09af\u09a6\u09bf \u099f\u09c7\u0995\u09cd\u09b8\u099f \u09aa\u09be\u0993\u09af\u09bc\u09be \u09a8\u09be \u09a4\u09be\u09b9\u09b2\u09c7 indexOf() \u098f\u09ac\u0982 lastIndexOf() \u0989\u09ad\u09df \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf -1 \u09aa\u09cd\u09b0\u09a6\u09be\u09a8 \u0995\u09b0\u09c7\u0964<br \/>\n[ \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09b6\u09c2\u09a8\u09cd\u09af \u09a5\u09c7\u0995\u09c7 \u0985\u09ac\u09b8\u09cd\u09a5\u09be\u09a8 \u0997\u09a3\u09a8\u09be \u0995\u09b0\u09c7\u0964 \u098f\u0995\u099f\u09bf \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u09ae\u09a7\u09cd\u09af\u09c7 0 \u09aa\u09cd\u09b0\u09a5\u09ae, 1 \u09a6\u09cd\u09ac\u09bf\u09a4\u09c0\u09af\u09bc, 2 \u09a4\u09c3\u09a4\u09c0\u09df \u09b8\u09cd\u09a5\u09be\u09a8\u09c7\u0964 ]<br \/>\n\u0989\u09ad\u09af\u09bc \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf\u09a4\u09c7 \u0985\u09a8\u09c1\u09b8\u09a8\u09cd\u09a7\u09be\u09a8\u09c7\u09b0 \u099c\u09a8\u09cd\u09af \u09b6\u09c1\u09b0\u09c1\u09b0 \u0985\u09ac\u09b8\u09cd\u09a5\u09be\u09a8 \u09b9\u09bf\u09b8\u09be\u09ac\u09c7 \u09a6\u09cd\u09ac\u09bf\u09a4\u09c0\u09af\u09bc \u09aa\u09cd\u09af\u09be\u09b0\u09be\u09ae\u09bf\u099f\u09be\u09b0 \u0997\u09cd\u09b0\u09b9\u09a3 \u0995\u09b0\u09c7\u0964<\/p>\n<p>&nbsp;<\/p>\n<h2>\u098f\u0995\u099f\u09bf \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u098f\u09b0 \u09ae\u09a7\u09cd\u09af\u09c7 \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u0985\u09a8\u09c1\u09b8\u09a8\u09cd\u09a7\u09be\u09a8<\/h2>\n<p>search() \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u098f\u0995\u099f\u09bf \u09a8\u09bf\u09b0\u09cd\u09a6\u09bf\u09b7\u09cd\u099f \u09ae\u09be\u09a8\u09c7\u09b0 \u099c\u09a8\u09cd\u09af \u098f\u0995\u099f\u09bf \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u0985\u09a8\u09c1\u09b8\u09a8\u09cd\u09a7\u09be\u09a8 \u0995\u09b0\u09c7 \u098f\u09ac\u0982 \u09ae\u09cd\u09af\u09be\u099a \u09b9\u0993\u09df\u09be \u0985\u09ac\u09b8\u09cd\u09a5\u09be\u09a8 \u09aa\u09cd\u09b0\u09a6\u09be\u09a8 \u0995\u09b0\u09c7\u0964<\/p>\n<p>\u0989\u09a6\u09be\u09b9\u09b0\u09a3<\/p>\n<hr \/>\n<p>var str = &#8220;Please locate where &#8216;locate&#8217; occurs!&#8221;;<br \/>\nvar pos = str.search(&#8220;locate&#8221;);<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>**\u0986\u09aa\u09a8\u09bf \u0995\u09bf \u09b2\u0995\u09cd\u09b7\u09cd\u09af \u0995\u09b0\u09c7\u099b\u09c7\u09a8?<br \/>\nindexOf() \u098f\u09ac\u0982 search() \u09a6\u09c1\u099f\u09bf \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf\u0987 \u09b8\u09ae\u09be\u09a8\u0964<br \/>\n\u09a4\u09be\u09b0\u09be \u098f\u0995\u0987 \u0986\u09b0\u09cd\u0997\u09c1\u09ae\u09c7\u09a8\u09cd\u099f (\u09aa\u09cd\u09af\u09be\u09b0\u09be\u09ae\u09bf\u099f\u09be\u09b0) \u0997\u09cd\u09b0\u09b9\u09a3 \u0995\u09b0\u09c7 \u098f\u09ac\u0982 \u09a4\u09be\u09b0\u09be \u098f\u0995\u0987 \u09ae\u09be\u09a8 \u09aa\u09cd\u09b0\u09a6\u09be\u09a8 \u0995\u09b0\u09c7\u0964<br \/>\n\u09a6\u09c1\u099f\u09bf \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf\u0987 \u09b8\u09ae\u09be\u09a8 \u0995\u09bf\u09a8\u09cd\u09a4\u09c1 search() \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u0986\u09b0\u09cb \u0985\u09a8\u09c7\u0995 \u09b6\u0995\u09cd\u09a4\u09bf\u09b6\u09be\u09b2\u09c0 \u09b8\u09be\u09b0\u09cd\u099a \u09ae\u09be\u09a8 \u0997\u09cd\u09b0\u09b9\u09a3 \u0995\u09b0\u09a4\u09c7 \u09aa\u09be\u09b0\u09c7\u0964<br \/>\n\u0986\u09aa\u09a8\u09be\u09b0\u09be \u09b0\u09c7\u0997\u09c1\u09b2\u09be\u09b0 \u098f\u0995\u09cd\u09b8\u09aa\u09cd\u09b0\u09c7\u09b6\u09a8 \u09b8\u09ae\u09cd\u09aa\u09b0\u09cd\u0995\u09bf\u09a4 \u0985\u09a7\u09cd\u09af\u09be\u09af\u09bc\u09c7 \u09b6\u0995\u09cd\u09a4\u09bf\u09b6\u09be\u09b2\u09c0 \u09b8\u09be\u09b0\u09cd\u099a \u09ae\u09be\u09a8 \u09b8\u09ae\u09cd\u09aa\u09b0\u09cd\u0995\u09c7 \u0986\u09b0\u09cb \u099c\u09be\u09a8\u09a4\u09c7 \u09aa\u09be\u09b0\u09ac\u09c7\u09a8\u0964<\/p>\n<p>&nbsp;<\/p>\n<h2>\u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u09af\u09a8\u09cd\u09a4\u09cd\u09b0\u09be\u0982\u09b6 \u098f\u0995\u09cd\u09b8\u099f\u09cd\u09b0\u09be\u0995\u09cd\u099f\u09bf\u0982<\/h2>\n<p>\u098f\u0995\u099f\u09bf \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u098f\u09b0 \u098f\u0995\u099f\u09bf \u0985\u0982\u09b6 \u098f\u0995\u09cd\u09b8\u099f\u09cd\u09b0\u09be\u0995\u09cd\u099f\u09bf\u0982\u09df\u09c7\u09b0 \u099c\u09a8\u09cd\u09af 3\u099f\u09bf \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u0986\u099b\u09c7:<\/p>\n<ul>\n<li>slice(start, end)<\/li>\n<li>substring(start, end)<\/li>\n<li>substr(start, length)<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>slice() \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf<\/h3>\n<p>\u098f\u0995\u099f\u09bf \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u098f\u09b0 \u098f\u0995\u099f\u09bf \u0985\u0982\u09b6 \u098f\u0995\u09cd\u09b8\u099f\u09cd\u09b0\u09be\u0995\u09cd\u099f \u0995\u09b0\u09c7 \u098f\u09ac\u0982 \u098f\u0995\u099f\u09bf \u09a8\u09a4\u09c1\u09a8 \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u098f\u0995\u09cd\u09b8\u099f\u09cd\u09b0\u09be\u0995\u09cd\u099f\u09bf\u0982 \u0985\u0982\u09b6 \u09aa\u09cd\u09b0\u09a6\u09be\u09a8 \u0995\u09b0\u09c7\u0964<br \/>\n\u09aa\u09a6\u09cd\u09a7\u09a4\u09bf\u09a4\u09c7 2\u099f\u09bf \u09aa\u09cd\u09af\u09be\u09b0\u09be\u09ae\u09bf\u099f\u09be\u09b0 \u09b2\u09be\u0997\u09c7\u0964 \u09af\u09a5\u09be\u0983 \u09b6\u09c1\u09b0\u09c1\u09b0 \u0987\u09a8\u09a1\u09c7\u0995\u09cd\u09b8 (\u0985\u09ac\u09b8\u09cd\u09a5\u09be\u09a8), \u098f\u09ac\u0982 \u09b6\u09c7\u09b7 \u0987\u09a8\u09a1\u09c7\u0995\u09cd\u09b8 (\u0985\u09ac\u09b8\u09cd\u09a5\u09be\u09a8)\u0964<br \/>\n\u098f\u0987 \u0989\u09a6\u09be\u09b9\u09b0\u09a3 \u098f\u0995\u099f\u09bf \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982\u0995\u09c7 7 \u09a5\u09c7\u0995\u09c7 13 \u0985\u09ac\u09b8\u09cd\u09a4\u09be\u09a8\u09c7 slices out \u0995\u09b0\u09c7\u0983<\/p>\n<p>\u0989\u09a6\u09be\u09b9\u09b0\u09a3<\/p>\n<hr \/>\n<p>var str = &#8220;Apple, Banana, Kiwi&#8221;;<br \/>\nvar res = str.slice(7,13);<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>\u09ae\u09a7\u09cd\u09af\u09c7\u09b0 \u09ab\u09b2\u09be\u09ab\u09b2 \u09b9\u09ac\u09c7\u0983<br \/>\nBanana<\/p>\n<p>\u09af\u09a6\u09bf \u0995\u09cb\u09a8 \u09aa\u09cd\u09af\u09be\u09b0\u09be\u09ae\u09bf\u099f\u09be\u09b0 \u09a8\u09c7\u0997\u09c7\u099f\u09bf\u09ad \u09b9\u09df \u09a4\u09be\u09b9\u09b2\u09c7 \u098f\u09b0 \u0985\u09ac\u09b8\u09cd\u09a5\u09be\u09a8 \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u098f\u09b0 \u09b6\u09c7\u09b7 \u09a5\u09c7\u0995\u09c7 \u0997\u09a3\u09a8\u09be \u0995\u09b0\u09be \u09b9\u09ac\u09c7\u0964<br \/>\n\u098f\u0987 \u0989\u09a6\u09be\u09b9\u09b0\u09a3 \u098f\u0995\u099f\u09bf \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982\u0995\u09c7 -12 \u09a5\u09c7\u0995\u09c7 -6 \u0985\u09ac\u09b8\u09cd\u09a4\u09be\u09a8\u09c7 slices out \u0995\u09b0\u09c7\u0983<\/p>\n<p>\u0989\u09a6\u09be\u09b9\u09b0\u09a3<\/p>\n<hr \/>\n<p>var str = &#8220;Apple, Banana, Kiwi&#8221;;<br \/>\nvar res = str.slice(-12,-6);<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>\u09ae\u09a7\u09cd\u09af\u09c7\u09b0 \u09ab\u09b2\u09be\u09ab\u09b2 \u09b9\u09ac\u09c7\u0983<br \/>\nBanana<\/p>\n<p>\u09af\u09a6\u09bf \u0986\u09aa\u09a8\u09bf \u09a6\u09cd\u09ac\u09bf\u09a4\u09c0\u09af\u09bc \u09aa\u09cd\u09af\u09be\u09b0\u09be\u09ae\u09bf\u099f\u09be\u09b0\u099f\u09bf \u09ac\u09b0\u09cd\u099c\u09a8 \u0995\u09b0\u09c7\u09a8 \u09a4\u09ac\u09c7 \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf\u099f\u09bf\u09a4\u09c7 \u09ac\u09be\u0995\u09bf \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u09b8\u09c7\u09ad\u09be\u09ac\u09c7\u0987 \u09b9\u09ac\u09c7\u0964 \u09af\u09c7\u09ae\u09a8\u0983-<br \/>\nvar res = str.slice(7);<\/p>\n<p>\u09ac\u09be, \u09b6\u09c7\u09b7 \u09a5\u09c7\u0995\u09c7 \u0997\u09a8\u09a3\u09be \u0995\u09b0\u09b2\u09c7, \u09af\u09c7\u09ae\u09a8\u0983-<br \/>\nvar res = str.slice(-12);<\/p>\n<p>[ \u09a8\u09c7\u09a4\u09bf\u09ac\u09be\u099a\u0995 \u0985\u09ac\u09b8\u09cd\u09a5\u09be\u09a8\u09c7\u09b0 \u0987\u09a8\u09cd\u099f\u09be\u09b0\u09a8\u09c7\u099f \u098f\u0995\u09cd\u09b8\u09aa\u09cd\u09b2\u09cb\u09b0\u09be\u09b0 \u09ee \u098f\u09ac\u0982 \u09a4\u09be\u09b0 \u0986\u0997\u09c7\u09b0 \u09ad\u09be\u09b0\u09b8\u09a8\u09c7 \u0995\u09be\u099c \u0995\u09b0\u09ac\u09c7 \u09a8\u09be\u0964 ]<\/p>\n<p>&nbsp;<\/p>\n<h3>substring() \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf<\/h3>\n<p>substring(), slice() \u098f\u09b0 \u09ae\u09a4\u0964 \u09ad\u09bf\u09a8\u09cd\u09a8\u09a4\u09be \u098f\u0987 \u09af\u09c7 substring() \u0995\u0996\u09a8\u0993 \u09a8\u09c7\u0997\u09c7\u099f\u09bf\u09ad \u0987\u09a8\u09a1\u09c7\u0995\u09cd\u09b8 \u0995\u09b0\u09a4\u09c7 \u09aa\u09be\u09b0\u09c7 \u09a8\u09be\u0964<\/p>\n<p>\u0989\u09a6\u09be\u09b9\u09b0\u09a3<\/p>\n<hr \/>\n<p>var str = &#8220;Apple, Banana, Kiwi&#8221;;<br \/>\nvar res = str.substring(7,13);<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>\u09ae\u09a7\u09cd\u09af\u09c7\u09b0 \u09ab\u09b2\u09be\u09ab\u09b2 \u09b9\u09ac\u09c7\u0983<br \/>\nBanana<\/p>\n<p>\u09af\u09a6\u09bf \u0986\u09aa\u09a8\u09bf \u09a6\u09cd\u09ac\u09bf\u09a4\u09c0\u09af\u09bc \u09aa\u09cd\u09af\u09be\u09b0\u09be\u09ae\u09bf\u099f\u09be\u09b0\u099f\u09bf \u09ac\u09b0\u09cd\u099c\u09a8 \u0995\u09b0\u09c7\u09a8 \u09a4\u09ac\u09c7 substring() \u09ac\u09be\u0995\u09bf \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982\u0995\u09c7 \u09b8\u09c7\u09ad\u09be\u09ac\u09c7\u0987 slice out \u0995\u09b0\u09ac\u09c7\u0964<\/p>\n<p>&nbsp;<\/p>\n<h3>substr() \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf<\/h3>\n<p>substr() , slice() \u098f\u09b0 \u09ae\u09a4\u0964 \u09ad\u09bf\u09a8\u09cd\u09a8\u09a4\u09be \u098f\u0987 \u09af\u09c7 substr() \u098f\u0995\u09cd\u09b8\u099f\u09cd\u09b0\u09be\u0995\u09cd\u099f \u0985\u0982\u09b6\u09c7\u09b0 \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af \u09a8\u09bf\u09b0\u09cd\u09a6\u09bf\u09b7\u09cd\u099f \u0995\u09b0\u09c7\u0964<\/p>\n<p>\u0989\u09a6\u09be\u09b9\u09b0\u09a3<\/p>\n<hr \/>\n<p>var str = &#8220;Apple, Banana, Kiwi&#8221;;<br \/>\nvar res = str.substr(7,6);<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>\u09ae\u09a7\u09cd\u09af\u09c7\u09b0 \u09ab\u09b2\u09be\u09ab\u09b2 \u09b9\u09ac\u09c7\u0983<br \/>\nBanana<\/p>\n<p>\u09af\u09a6\u09bf \u09aa\u09cd\u09b0\u09a5\u09ae \u09aa\u09cd\u09af\u09be\u09b0\u09be\u09ae\u09bf\u099f\u09be\u09b0 \u09a8\u09c7\u0997\u09c7\u099f\u09bf\u09ad \u09b9\u09af\u09bc, \u09a4\u09be\u09b9\u09b2\u09c7 \u0985\u09ac\u09b8\u09cd\u09a5\u09be\u09a8 \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u098f\u09b0 \u09b6\u09c7\u09b7 \u09a5\u09c7\u0995\u09c7 \u0997\u09a3\u09a8\u09be \u0995\u09b0\u09be \u09b9\u09ac\u09c7\u0964<br \/>\n\u09a6\u09cd\u09ac\u09bf\u09a4\u09c0\u09af\u09bc \u09aa\u09cd\u09af\u09be\u09b0\u09be\u09ae\u09bf\u099f\u09be\u09b0 \u09a8\u09c7\u0997\u09c7\u099f\u09bf\u09ad \u09b9\u09a4\u09c7 \u09aa\u09be\u09b0\u09c7 \u09a8\u09be \u0995\u09be\u09b0\u09a3 \u098f\u099f\u09bf \u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af \u09b8\u0982\u099c\u09cd\u099e\u09be\u09af\u09bc\u09bf\u09a4 \u0995\u09b0\u09c7\u0964<br \/>\n\u09af\u09a6\u09bf \u09a6\u09cd\u09ac\u09bf\u09a4\u09c0\u09af\u09bc \u09aa\u09cd\u09af\u09be\u09b0\u09be\u09ae\u09bf\u099f\u09be\u09b0\u099f\u09bf \u09ac\u09b0\u09cd\u099c\u09a8 \u0995\u09b0\u09c7\u09a8 \u09a4\u09ac\u09c7 substr() \u09ac\u09be\u0995\u09bf \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982\u0995\u09c7 \u09b8\u09c7\u09ad\u09be\u09ac\u09c7\u0987 slice out \u0995\u09b0\u09ac\u09c7\u0964<\/p>\n<p>&nbsp;<\/p>\n<h2>\u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u09ac\u09bf\u09b7\u09af\u09bc\u09ac\u09b8\u09cd\u09a4\u09c1 \u09aa\u09cd\u09b0\u09a4\u09bf\u09b8\u09cd\u09a5\u09be\u09aa\u09a8<\/h2>\n<p>replace() \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u098f\u0995\u099f\u09bf \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u098f\u09b0 \u09ae\u09a7\u09cd\u09af\u09c7 \u0985\u09a8\u09cd\u09af \u09ae\u09be\u09a8\u09c7\u09b0 \u09b8\u0999\u09cd\u0997\u09c7 \u098f\u0995\u099f\u09bf \u09a8\u09bf\u09b0\u09cd\u09a6\u09bf\u09b7\u09cd\u099f \u09ae\u09be\u09a8\u0995\u09c7 \u09aa\u09cd\u09b0\u09a4\u09bf\u09b8\u09cd\u09a5\u09be\u09aa\u09a8 \u0995\u09b0\u09c7\u0964<\/p>\n<p>\u0989\u09a6\u09be\u09b9\u09b0\u09a3<\/p>\n<hr \/>\n<p>str = &#8220;Please visit Microsoft!&#8221;;<br \/>\nvar n = str.replace(&#8220;Microsoft&#8221;,&#8221;W3Schools&#8221;);<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>replace() \u09ae\u09c7\u09a5\u09a1 \u09b8\u09be\u09b0\u09cd\u099a \u09ae\u09be\u09a8 \u09b9\u09bf\u09b8\u09be\u09ac\u09c7 \u098f\u0995\u099f\u09bf \u09b0\u09c7\u0997\u09c1\u09b2\u09be\u09b0 \u098f\u0995\u09cd\u09b8\u09aa\u09cd\u09b0\u09c7\u09b6\u09a8\u0993 \u0997\u09cd\u09b0\u09b9\u09a3 \u0995\u09b0\u09a4\u09c7 \u09aa\u09be\u09b0\u09c7\u0964<\/p>\n<p>&nbsp;<\/p>\n<h2>\u0989\u099a\u09cd\u099a \u098f\u09ac\u0982 \u09a8\u09bf\u09ae\u09cd\u09a8 \u0995\u09c7\u09b8\u09c7 \u09b0\u09c2\u09aa\u09be\u09a8\u09cd\u09a4\u09b0<\/h2>\n<p>\u098f\u0995\u099f\u09bf \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 toUpperCase() \u098f\u09b0 \u09b8\u0999\u09cd\u0997\u09c7 \u0989\u099a\u09cd\u099a \u0995\u09c7\u09b8\u09c7 \u09b0\u09c2\u09aa\u09be\u09a8\u09cd\u09a4\u09b0 \u09b9\u09df\u0964<\/p>\n<p>\u0989\u09a6\u09be\u09b9\u09b0\u09a3<\/p>\n<hr \/>\n<pre>var text1 = \"Hello World!\";         \/\/ String\r\n var text2 = text1.toUpperCase();   \/\/ text2 is text1 converted to upper<\/pre>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>\u098f\u0995\u099f\u09bf \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 toUpperCase() \u098f\u09b0 \u09b8\u0999\u09cd\u0997\u09c7 \u09a8\u09bf\u09ae\u09cd\u09a8 \u0995\u09c7\u09b8\u09c7 \u09b0\u09c2\u09aa\u09be\u09a8\u09cd\u09a4\u09b0 \u09b9\u09df\u0964<\/p>\n<p>\u0989\u09a6\u09be\u09b9\u09b0\u09a3<\/p>\n<hr \/>\n<pre>var text1 = \"Hello World!\";         \/\/ String\r\n var text2 = text1.toLowerCase();   \/\/ text2 is text1 converted to lower<\/pre>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>concat() \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf<\/h2>\n<p>concat() \u09a6\u09c1\u099f\u09bf \u0985\u09a5\u09ac\u09be \u0986\u09b0\u09cb \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u09af\u09cb\u0997 \u0995\u09b0\u09c7\u0964<\/p>\n<p>\u0989\u09a6\u09be\u09b9\u09b0\u09a3<\/p>\n<hr \/>\n<p>var text1 = &#8220;Hello&#8221;;<br \/>\nvar text2 = &#8220;World&#8221;;<br \/>\ntext3 = text1.concat(&#8221; &#8220;,text2);<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>Concat () \u09ae\u09c7\u09a5\u09a1 \u09aa\u09cd\u09b2\u09be\u09b8 \u0985\u09aa\u09be\u09b0\u09c7\u099f\u09b0\u09c7\u09b0 \u09aa\u09b0\u09bf\u09ac\u09b0\u09cd\u09a4\u09c7 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09be \u09af\u09c7\u09a4\u09c7 \u09aa\u09be\u09b0\u09c7\u0964 \u098f\u0987 \u09a6\u09c1\u0987 \u09b2\u09be\u0987\u09a8 \u098f\u0995\u0987 \u0995\u09be\u099c \u0995\u09b0\u09c7\u0983<\/p>\n<hr \/>\n<p>var text = &#8220;Hello&#8221; + &#8221; &#8221; + &#8220;World!&#8221;;<br \/>\nvar text = &#8220;Hello&#8221;.concat(&#8221; &#8220;,&#8221;World!&#8221;);<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>\u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u0985\u0995\u09cd\u09b7\u09b0 \u09a8\u09bf\u09b7\u09cd\u0995\u09be\u09b6\u09a8<\/h2>\n<p>\u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u0985\u0995\u09cd\u09b7\u09b0 \u0986\u09b9\u09b0\u09a3\u09c7\u09b0 \u099c\u09a8\u09cd\u09af 2\u099f\u09bf \u09a8\u09bf\u09b0\u09be\u09aa\u09a6 \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u09a8\u09bf\u09ae\u09cd\u09a8\u09b0\u09c2\u09aa\u0983<\/p>\n<ol>\n<li>charAt(position)<\/li>\n<li>charCodeAt(position)<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<h3>charAt() \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf<\/h3>\n<p>CharAt () \u09ae\u09c7\u09a5\u09a1 \u098f\u0995\u099f\u09bf \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u09ae\u09a7\u09cd\u09af\u09c7 \u098f\u0995\u099f\u09bf \u09a8\u09bf\u09b0\u09cd\u09a6\u09bf\u09b7\u09cd\u099f \u0987\u09a8\u09a1\u09c7\u0995\u09cd\u09b8\u09c7 (\u0985\u09ac\u09b8\u09cd\u09a5\u09be\u09a8) \u0987\u09a8\u09a1\u09c7\u0995\u09cd\u09b8 \u099a\u09b0\u09bf\u09a4\u09cd\u09b0 \u09aa\u09cd\u09b0\u09a6\u09be\u09a8 \u0995\u09b0\u09c7\u0964<\/p>\n<p>\u0989\u09a6\u09be\u09b9\u09b0\u09a3<\/p>\n<hr \/>\n<pre>var str = \"HELLO WORLD\";\r\n str.charAt(0);          \/\/ returns H<\/pre>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3>charCodeAt() \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf<\/h3>\n<p>CharCodeAt () \u09ae\u09c7\u09a5\u09a1 \u098f\u0995\u099f\u09bf \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u09ae\u09a7\u09cd\u09af\u09c7 \u098f\u0995\u099f\u09bf \u09a8\u09bf\u09b0\u09cd\u09a6\u09bf\u09b7\u09cd\u099f \u0987\u09a8\u09a1\u09c7\u0995\u09cd\u09b8\u09c7 \u0987\u0989\u09a8\u09bf\u0995\u09cb\u09a1 \u099a\u09b0\u09bf\u09a4\u09cd\u09b0 \u09aa\u09cd\u09b0\u09a6\u09be\u09a8 \u0995\u09b0\u09c7\u0964<\/p>\n<p>\u0989\u09a6\u09be\u09b9\u09b0\u09a3<\/p>\n<hr \/>\n<pre>var str = \"HELLO WORLD\";<\/pre>\n<pre>str.charCodeAt(0);        \/\/ returns 72<\/pre>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>\u0985\u09a8\u09bf\u09b0\u09be\u09aa\u09a6 \u0985\u09cd\u09af\u09be\u09b0\u09c7 \u09b9\u09bf\u09b8\u09be\u09ac\u09c7 \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0<\/h2>\n<p>\u0985\u09cd\u09af\u09be\u09b0\u09c7 \u09b9\u09bf\u09b8\u09be\u09ac\u09c7 \u098f\u0995\u099f\u09bf \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u0985\u09cd\u09af\u09be\u0995\u09cd\u09b8\u09c7\u09b8 \u0995\u09b0\u09a4\u09c7 \u098f\u0987\u09b0\u0995\u09ae \u0995\u09cb\u09a1 \u09a6\u09c7\u0996\u09a4\u09c7 \u09aa\u09be\u09ac\u09c7\u09a8\u0983<\/p>\n<hr \/>\n<pre>var str = \"HELLO WORLD\";<\/pre>\n<pre>str[0];           \/\/ returns H<\/pre>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>\u098f\u0995\u099f\u09bf \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982\u0995\u09c7 \u0985\u09cd\u09af\u09be\u09b0\u09c7\u09a4\u09c7 \u09b0\u09c2\u09aa\u09be\u09a8\u09cd\u09a4\u09b0<\/h2>\n<p>\u098f\u0995\u099f\u09bf \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 split() \u09ae\u09c7\u09a5\u09a1\u09c7\u09b0 \u09b8\u09be\u09b9\u09be\u09af\u09cd\u09af\u09c7 \u0985\u09cd\u09af\u09be\u09b0\u09c7\u09a4\u09c7 \u09b0\u09c2\u09aa\u09be\u09a8\u09cd\u09a4\u09b0\u09bf\u09a4 \u09b9\u09a4\u09c7 \u09aa\u09be\u09b0\u09c7\u0964<\/p>\n<p>\u0989\u09a6\u09be\u09b9\u09b0\u09a3<\/p>\n<hr \/>\n<pre>var txt = \"a,b,c,d,e\";   \/\/ String\r\n txt.split(\",\");         \/\/ Split on commas\r\n txt.split(\" \");         \/\/ Split on spaces\r\n txt.split(\"|\");         \/\/ Split on pipe<\/pre>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>\u09af\u09a6\u09bf \u09ac\u09bf\u09ad\u09be\u099c\u0995\u0995\u09c7 \u09ac\u09be\u09a6 \u09a6\u09c7\u0993\u09af\u09bc\u09be \u09b9\u09af\u09bc, \u09a4\u09be\u09b9\u09b2\u09c7 \u09ab\u09bf\u09b0\u09a4\u09bf \u0985\u09cd\u09af\u09be\u09b0\u09c7\u09a4\u09c7 \u0987\u09a8\u09a1\u09c7\u0995\u09cd\u09b8 [0] \u098f\u09b0 \u09ae\u09a7\u09cd\u09af\u09c7 \u09aa\u09c1\u09b0\u09cb \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u09a5\u09be\u0995\u09ac\u09c7\u0964 \u09af\u09a6\u09bf \u09ac\u09bf\u09ad\u09be\u099c\u0995 &#8220;&#8221; \u09b9\u09df, \u09a4\u09ac\u09c7 \u09ab\u09bf\u09b0\u09a4\u09bf \u0985\u09cd\u09af\u09be\u09b0\u09ce \u098f\u0995\u0995 \u0985\u0995\u09cd\u09b7\u09b0\u09c7\u09b0 \u098f\u0995\u099f\u09bf \u0985\u09cd\u09af\u09be\u09b0\u09c7 \u09b9\u09ac\u09c7\u0964 \u09af\u09c7\u09ae\u09a8\u0983<\/p>\n<p>\u0989\u09a6\u09be\u09b9\u09b0\u09a3<\/p>\n<hr \/>\n<pre>var txt = \"Hello\"; \/\/ String\r\n txt.split(\"\");    \/\/ Split in characters<\/pre>\n<hr \/>\n<p>&nbsp;<\/p>\n<h2>\u09a8\u09bf\u099c\u09c7 \u09a8\u09bf\u099c\u09c7 \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8 \u0995\u09b0!<\/h2>\n<p><strong>\u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8 01:<\/strong><\/p>\n<p><strong>\u0987\u0999\u09cd\u0997\u09bf\u09a4: <\/strong>\u099f\u09c7\u0995\u09cd\u09b8\u099f \u09ad\u09c7\u09b0\u09bf\u09df\u09c7\u09ac\u09b2 \u098f\u09b0 \u09ae\u09a7\u09cd\u09af\u09c7 &#8220;World&#8221; \u098f\u09b0 \u09aa\u09cd\u09b0\u09a5\u09ae \u0985\u09ac\u09b8\u09cd\u09a5\u09be\u09a8 \u09aa\u09cd\u09b0\u09a6\u09b0\u09cd\u09b6\u09a8 \u0995\u09b0\u09c7\u0964<strong><br \/>\n<\/strong><\/p>\n<hr \/>\n<pre>&lt;!DOCTYPE html&gt;\r\n&lt;html&gt;\r\n&lt;body&gt;<\/pre>\n<pre>&lt;p id=\"demo\"&gt;&lt;\/p&gt;<\/pre>\n<pre>&lt;script&gt;\r\nvar txt = \"Hello World\";\r\ndocument.getElementById(\"demo\").innerHTML = txt;\r\n&lt;\/script&gt;<\/pre>\n<pre>&lt;\/body&gt;\r\n&lt;\/html&gt;<\/pre>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8 02:<\/strong><\/p>\n<p><strong>\u0987\u0999\u09cd\u0997\u09bf\u09a4:<\/strong> &#8220;World&#8221; \u0995\u09c7 &#8220;Universe&#8221; \u09a6\u09cd\u09ac\u09be\u09b0\u09be \u09aa\u09b0\u09bf\u09ac\u09b0\u09cd\u09a4\u09a8 \u0995\u09b0\u09be\u09b0 \u099c\u09a8\u09cd\u09af replace() \u09ae\u09c7\u09a5\u09a1 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09c1\u09a8\u0964<\/p>\n<hr \/>\n<pre>&lt;!DOCTYPE html&gt;\r\n&lt;html&gt;\r\n&lt;body&gt;<\/pre>\n<pre>&lt;p id=\"demo\"&gt;&lt;\/p&gt;<\/pre>\n<pre>&lt;script&gt;\r\nvar txt = \"Hello World\";\r\ndocument.getElementById(\"demo\").innerHTML = txt;\r\n&lt;\/script&gt;<\/pre>\n<pre>&lt;\/body&gt;\r\n&lt;\/html&gt;<\/pre>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8 03:<\/strong><\/p>\n<p><strong>\u0987\u0999\u09cd\u0997\u09bf\u09a4:<\/strong> \u09b6\u09c1\u09a7\u09c1\u09ae\u09be\u09a4\u09cd\u09b0 &#8220;Banana,Kiwi&#8221; \u09aa\u09cd\u09b0\u09a6\u09b0\u09cd\u09b6\u09a8\u09c7\u09b0 \u099c\u09a8\u09cd\u09af slice() \u09ae\u09c7\u09a5\u09a1 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09c1\u09a8\u0964<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<pre>&lt;!DOCTYPE html&gt;\r\n&lt;html&gt;\r\n&lt;body&gt;<\/pre>\n<pre>&lt;p id=\"demo\"&gt;&lt;\/p&gt;<\/pre>\n<pre>&lt;script&gt;\r\nvar str = \"Apple,Banana,Kiwi\";\r\ndocument.getElementById(\"demo\").innerHTML = str;\r\n&lt;\/script&gt;<\/pre>\n<pre>&lt;\/body&gt;\r\n&lt;\/html&gt;<\/pre>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u09ae\u09c7\u09a5\u09a1 (JavaScript String Methods) \u09a8\u09df\u09a8 \u099a\u09a8\u09cd\u09a6\u09cd\u09b0 \u09a6\u09a4\u09cd\u09a4 &nbsp; \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u0986\u09aa\u09a8\u09be\u0995\u09c7 \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u09a8\u09bf\u09df\u09c7 \u0995\u09be\u099c \u0995\u09b0\u09a4\u09c7 \u09b8\u09be\u09b9\u09be\u09af\u09cd\u09af \u0995\u09b0\u09ac\u09c7\u0964 &nbsp; \u0995\u09cb\u09a8 \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u098f\u09b0 \u09ae\u09a7\u09cd\u09af\u09c7 \u098f\u0995\u099f\u09bf \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u0996\u09c1\u0981\u099c\u09c7 \u09ac\u09c7\u09b0 \u0995\u09b0\u09be indexOf() \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u098f\u0995\u099f\u09bf \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u098f\u09b0 \u09ae\u09a7\u09cd\u09af\u09c7 \u09a8\u09bf\u09b0\u09cd\u09a6\u09bf\u09b7\u09cd\u099f \u09b2\u09c7\u0996\u09be\u09b0 \u09aa\u09cd\u09b0\u09a5\u09ae \u0998\u099f\u09a8\u09be\u09b0 \u0987\u09a8\u09cd\u09a1\u09c7\u0995\u09cd\u09b8 \u09aa\u09cd\u09b0\u09a6\u09be\u09a8 \u0995\u09b0\u09c7\u0964 \u0989\u09a6\u09be\u09b9\u09b0\u09a3 var str = &#8220;Please locate where &#8216;locate&#8217; occurs!&#8221;; var pos = str.indexOf(&#8220;locate&#8221;); &hellip; <\/p>\n<p><a class=\"more-link btn\" href=\"http:\/\/bangla.sitestree.com\/?p=7101\">Continue reading<\/a><\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[65],"tags":[7,782,748,783,738,785,784,506,779],"class_list":["post-7101","post","type-post","status-publish","format-standard","hentry","category-javascript-complete-courses","tag-javascript","tag-methods","tag-string","tag-783","tag-738","tag-785","tag-784","tag-506","tag-779","item-wrap"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":7136,"url":"http:\/\/bangla.sitestree.com\/?p=7136","url_meta":{"origin":7101,"position":0},"title":"\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09b0\u09c7\u0997\u09c1\u09b2\u09be\u09b0 \u098f\u0995\u09cd\u09b8\u09aa\u09cd\u09b0\u09c7\u09b6\u09a8 (JavaScript Regular Expressions in Bangla)","author":"Author-Check- Article-or-Video","date":"March 21, 2015","format":false,"excerpt":"\u09a6\u09c0\u09aa\u0999\u09cd\u0995\u09b0 \u09b8\u09be\u09b9\u09be \u00a0 \u0986\u099c\u0995\u09c7 \u0986\u09aa\u09a8\u09be\u09a6\u09c7\u09b0 \u09ae\u09be\u099d\u09c7 \u098f\u0995\u099f\u09bf \u09ac\u09bf\u09b7\u09df \u09b6\u09c7\u09df\u09be\u09b0 \u0995\u09b0\u09be\u09b0 \u099c\u09a8\u09cd\u09af \u09b9\u09be\u099c\u09bf\u09b0 \u09b9\u09b2\u09be\u09ae\u0964\u09a4\u09be \u09b9\u09b2 \u0995\u09bf\u09ad\u09be\u09ac\u09c7 Java Script Regular\u00a0 Expressions korte hoi. \u098f\u0995\u099f\u09bf \u09b0\u09c7\u0997\u09c1\u09b2\u09be\u09b0 \u098f\u0995\u09cd\u09b8\u09aa\u09cd\u09b0\u09c7\u09b6\u09a8 \u09b9\u09b2 \u098f\u0995\u099f\u09bf \u0985\u09a8\u09c1\u09b8\u09a8\u09cd\u09a7\u09be\u09a8 \u09aa\u09cd\u09af\u09be\u099f\u09be\u09b0\u09cd\u09a8 \u09af\u09c7\u099f\u09be \u099f\u09c7\u0995\u09cd\u09b8\u099f \u098f\u09ac\u0982 \u099f\u09c7\u0995\u09cd\u09b8\u099f \u0985\u09aa\u09be\u09b0\u09c7\u09b6\u09a8 \u09aa\u09cd\u09b0\u09a4\u09bf\u09b8\u09cd\u09a4\u09be\u09aa\u09a8\u09c7\u09b0 \u099c\u09a8\u09cd\u09af \u09ac\u09cd\u09af\u09be\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09be \u09b9\u09df \u09ac\u09be \u09ac\u09cd\u09af\u09be\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09be \u09af\u09c7\u09a4\u09c7 \u09aa\u09be\u09b0\u09c7\u0964 \u098f\u0987 \u09b0\u09c7\u0997\u09c1\u09b2\u09be\u09b0 \u098f\u0995\u09cd\u09b8\u09aa\u09cd\u09b0\u09c7\u09b6\u09a8 \u09b9\u09b2 \u098f\u0995\u099f\u09bf \u0985\u0995\u09cd\u09b7\u09b0 \u09ac\u09be\u2026","rel":"","context":"In &quot;JavaScript&quot;","block_context":{"text":"JavaScript","link":"http:\/\/bangla.sitestree.com\/?cat=65"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":8844,"url":"http:\/\/bangla.sitestree.com\/?p=8844","url_meta":{"origin":7101,"position":1},"title":"\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 (JavaScript Strings)","author":"Rafiqul Islam","date":"May 9, 2015","format":false,"excerpt":"\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 (JavaScript Strings) \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u099f\u09c7\u0995\u09cd\u09b8\u099f (\u09b2\u09c7\u0996\u09be) \u09b8\u0982\u09b0\u0995\u09cd\u09b7\u09a3 \u0993 \u0995\u09be\u099c\u09c7 \u09b2\u09be\u0997\u09be\u09a8\u09cb\u09b0 \u099c\u09a8\u09cd\u09af \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09be \u09b9\u09df\u0964 \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u09b8\u09be\u09a7\u09be\u09b0\u09a3\u09ad\u09be\u09ac\u09c7 \u098f\u0995\u0997\u09c1\u099a\u09cd\u099b \u09ac\u09b0\u09cd\u09a3\u0995\u09c7 \u09aa\u09b0\u09ac\u09b0\u09cd\u09a4\u09c0\u09a4\u09c7 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0\u09c7\u09b0 \u099c\u09a8\u09cd\u09af \u09b8\u0982\u09b0\u0995\u09cd\u09b7\u09a3 \u0995\u09b0\u09c7\u0964 \u09af\u09c7\u09ae\u09a8: \"John Doe\" \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u0995\u09cb\u099f\u09c7\u09b6\u09a8\u09b0 \u098f\u09b0 \u09ad\u09bf\u09a4\u09b0\u09c7 \u09af\u09c7\u0995\u09cb\u09a8 \u09b2\u09c7\u0996\u09be \u09b9\u09a4\u09c7 \u09aa\u09be\u09b0\u09c7\u0964 \u0986\u09aa\u09a8\u09bf \u098f\u0995\u0995 \u09ac\u09be \u09a1\u09ac\u09b2 \u0995\u09cb\u099f\u09c7\u09b6\u09a8 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09a4\u09c7 \u09aa\u09be\u09b0\u09c7\u09a8\u0964 \u09af\u09c7\u09ae\u09a8: var carname = \"Volvo\u2026","rel":"","context":"In &quot;JavaScript&quot;","block_context":{"text":"JavaScript","link":"http:\/\/bangla.sitestree.com\/?cat=65"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":7134,"url":"http:\/\/bangla.sitestree.com\/?p=7134","url_meta":{"origin":7101,"position":2},"title":"\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u099f\u09be\u0987\u09aa \u09b0\u09c2\u09aa\u09be\u09a8\u09cd\u09a4\u09b0\u0995\u09b0\u09a3 (JavaScript Type Conversion)","author":"Author-Check- Article-or-Video","date":"April 1, 2015","format":false,"excerpt":"\u0986\u09a6\u09a8\u09be\u09a8 \u09a8\u09be\u09b9\u09bf\u09a6 \u09b8\u09b0\u0995\u09be\u09b0\u09bf \u09a4\u09bf\u09a4\u09c1\u09ae\u09c0\u09b0 \u0995\u09b2\u09c7\u099c \u00a0 \u09a8\u09be\u09ae\u09cd\u09ac\u09be\u09b0 \u09a5\u09c7\u0995\u09c7 \u09a8\u09be\u09ae\u09cd\u09ac\u09be\u09b0\u09c7 \u09aa\u09b0\u09bf\u09ac\u09b0\u09cd\u09a4\u09a8, \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u09a5\u09c7\u0995\u09c7 \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u098f \u09aa\u09b0\u09bf\u09ac\u09b0\u09cd\u09a4\u09a8, \u09ac\u09c1\u09b2\u09bf\u09af\u09bc\u09be\u09a8 \u09a5\u09c7\u0995\u09c7 \u09ac\u09c1\u09b2\u09bf\u09df\u09be\u09a8\u09c7 \u09aa\u09b0\u09bf\u09ac\u09b0\u09cd\u09a4\u09a8 \u0995\u09b0\u09be \u09af\u09be\u09df \u0964 \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09a1\u09c7\u099f\u09be \u09aa\u09cd\u09b0\u0995\u09be\u09b0\u09ad\u09c7\u09a6 \u09ae\u09be\u09a8 \u09a7\u09be\u09b0\u09a3 \u0995\u09b0\u09a4\u09c7 \u09aa\u09be\u09b0\u09c7 \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f\u09c7 \u098f\u09ae\u09a8 5 \u09a7\u09b0\u09a8\u09c7\u09b0 \u09a1\u09be\u099f\u09be \u099f\u09be\u0987\u09aa \u0986\u099b\u09c7: \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u09a8\u09be\u09ae\u09cd\u09ac\u09be\u09b0 \u09ac\u09c1\u09b2\u09bf\u09af\u09bc\u09be\u09a8 \u0985\u09ac\u099c\u09c7\u0995\u09cd\u099f \u09ab\u09be\u0982\u09b6\u09a8 \u0985\u09ac\u099c\u09c7\u0995\u09cd\u099f \u09e9 \u09a7\u09b0\u09a8\u09c7\u09b0 \u09b9\u09af\u09bc: \u0985\u09ac\u099c\u09c7\u0995\u09cd\u099f \u09a4\u09be\u09b0\u09bf\u0996 \u0985\u09cd\u09af\u09be\u09b0\u09c7 \u09ac\u09be \u09b6\u09cd\u09b0\u09c7\u09a3\u09c0\u09ac\u09bf\u09a8\u09cd\u09af\u09be\u09b8\u2026","rel":"","context":"In &quot;JavaScript&quot;","block_context":{"text":"JavaScript","link":"http:\/\/bangla.sitestree.com\/?cat=65"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":7106,"url":"http:\/\/bangla.sitestree.com\/?p=7106","url_meta":{"origin":7101,"position":3},"title":"\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09a8\u09be\u09ae\u09cd\u09ac\u09be\u09b0 \u09ae\u09c7\u09a5\u09a1 (JavaScript Number Methods)","author":"Author-Check- Article-or-Video","date":"April 1, 2015","format":false,"excerpt":"\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09b8\u0982\u0996\u09cd\u09af\u09be \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u09a8\u09df\u09a8 \u099a\u09a8\u09cd\u09a6\u09cd\u09b0 \u09a6\u09a4\u09cd\u09a4 \u00a0 \u09b8\u0982\u0996\u09cd\u09af\u09be \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u0986\u09aa\u09a8\u09be\u0995\u09c7 \u09b8\u0982\u0996\u09cd\u09af\u09be \u09a8\u09bf\u09df\u09c7 \u0995\u09be\u099c \u0995\u09b0\u09a4\u09c7 \u09b8\u09be\u09b9\u09be\u09af\u09cd\u09af \u0995\u09b0\u09ac\u09c7\u0964 \u0997\u09cd\u09b2\u09cb\u09ac\u09be\u09b2 \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u0997\u09cd\u09b2\u09cb\u09ac\u09be\u09b2 \u09ab\u09be\u0982\u09b6\u09a8 \u09b8\u09ae\u09b8\u09cd\u09a4 \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09a1\u09c7\u099f\u09be \u099f\u09be\u0987\u09aa\u09c7 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09be \u09af\u09c7\u09a4\u09c7 \u09aa\u09be\u09b0\u09c7\u0964 \u09af\u0996\u09a8 \u09b8\u0982\u0996\u09cd\u09af\u09be \u09a8\u09bf\u09df\u09c7 \u0995\u09be\u099c \u0995\u09b0\u09ac\u09c7\u09a8, \u098f\u0987\u0997\u09c1\u09b2\u09cb \u09b8\u09ac\u099a\u09c7\u09af\u09bc\u09c7 \u09aa\u09cd\u09b0\u09be\u09b8\u0999\u09cd\u0997\u09bf\u0995 \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf\u0983 \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf\u0983 Number() \u09ac\u09cd\u09af\u09be\u0996\u09cd\u09af\u09be\u0983 \u09a4\u09be\u09b0 \u09ac\u09bf\u099a\u09be\u09b0 \u09a5\u09c7\u0995\u09c7 \u09b0\u09c2\u09aa\u09be\u09a8\u09cd\u09a4\u09b0\u09bf\u09a4 \u098f\u0995\u099f\u09bf \u09a8\u09ae\u09cd\u09ac\u09b0 \u09aa\u09cd\u09b0\u09a6\u09be\u09a8 \u0995\u09b0\u09c7\u0964 \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf\u0983\u2026","rel":"","context":"In &quot;JavaScript&quot;","block_context":{"text":"JavaScript","link":"http:\/\/bangla.sitestree.com\/?cat=65"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":7103,"url":"http:\/\/bangla.sitestree.com\/?p=7103","url_meta":{"origin":7101,"position":4},"title":"\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09a8\u09be\u09ae\u09cd\u09ac\u09be\u09b0 (JavaScript Numbers)","author":"Author-Check- Article-or-Video","date":"March 1, 2015","format":false,"excerpt":"\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09a8\u09be\u09ae\u09cd\u09ac\u09be\u09b0 (JavaScript Numbers) \u09a8\u09df\u09a8 \u099a\u09a8\u09cd\u09a6\u09cd\u09b0 \u09a6\u09a4\u09cd\u09a4 \u00a0 \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u098f\u09b0 \u09b6\u09c1\u09a7\u09c1\u09ae\u09be\u09a4\u09cd\u09b0 \u098f\u0995 \u09a7\u09b0\u09a8\u09c7\u09b0 \u09a8\u09be\u09ae\u09cd\u09ac\u09be\u09b0 \u0986\u099b\u09c7\u0964 \u09a8\u09be\u09ae\u09cd\u09ac\u09be\u09b0 \u09a6\u09b6\u09ae\u09bf\u0995 \u09a6\u09bf\u09df\u09c7 \u09ac\u09be \u09a8\u09be \u09a6\u09bf\u09df\u09c7\u0993 \u09b2\u09c7\u0996\u09be \u09af\u09be\u09df\u0964 \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09a8\u09be\u09ae\u09cd\u09ac\u09be\u09b0 \u09a8\u09be\u09ae\u09cd\u09ac\u09be\u09b0 \u09a6\u09b6\u09ae\u09bf\u0995 \u09a6\u09bf\u09df\u09c7 \u09ac\u09be \u09a8\u09be \u09a6\u09bf\u09df\u09c7\u0993 \u09b2\u09c7\u0996\u09be \u09af\u09be\u09df\u0983 \u0989\u09a6\u09be\u09b9\u09b0\u09a3 var x = 34.00;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/ A number with decimals var y = 34;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/ A number\u2026","rel":"","context":"In &quot;JavaScript&quot;","block_context":{"text":"JavaScript","link":"http:\/\/bangla.sitestree.com\/?cat=65"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":7079,"url":"http:\/\/bangla.sitestree.com\/?p=7079","url_meta":{"origin":7101,"position":5},"title":"\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u0985\u09aa\u09be\u09b0\u09c7\u099f\u09b0\u09b8 (JavaScript Operators)","author":"Author-Check- Article-or-Video","date":"March 16, 2015","format":false,"excerpt":"\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u0985\u09aa\u09be\u09b0\u09c7\u099f\u09b0\u09b8 (JavaScript Operators) \u0989\u09a6\u09be\u09b9\u09b0\u09a3 \u09a6\u09c1\u099f\u09bf \u09ad\u09cd\u09af\u09be\u09b2\u09c1\u0995\u09c7 variable \u09b9\u09bf\u09b8\u09c7\u09ac\u09c7 \u0998\u09cb\u09b7\u09a3\u09be \u0995\u09b0\u09c7 \u09a4\u09be\u09a6\u09c7\u09b0 \u09af\u09cb\u0997 \u0995\u09b0\u09be \u09b9\u09df\u09c7\u099b\u09c7 var x = 5; \/\/ \u098f\u0987\u0996\u09be\u09a8\u09c7 \u09eb \u0995\u09c7 x \u0998\u09cb\u09b7\u09a3\u09be \u0995\u09b0\u09be \u09b9\u09df\u09c7\u099b\u09c7 var y = 2; \/\/ \u098f\u0987\u0996\u09be\u09a8\u09c7 \u09e8 \u0995\u09c7 y \u0998\u09cb\u09b7\u09a3\u09be \u0995\u09b0\u09be \u09b9\u09df\u09c7\u099b\u09c7 var z = x + y; \/\/ \u09ab\u09b2\u09be\u09ab\u09b2 \u09ed \u0995\u09c7 z\u2026","rel":"","context":"In 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