{"id":7862,"date":"2015-03-28T23:17:37","date_gmt":"2015-03-29T03:17:37","guid":{"rendered":"http:\/\/bangla.salearningschool.com\/?p=7862"},"modified":"2015-05-08T11:44:46","modified_gmt":"2015-05-08T15:44:46","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%a1%e0%a7%87%e0%a6%9f%e0%a6%be-%e0%a6%9f%e0%a6%be%e0%a6%87%e0%a6%aa-javascr","status":"publish","type":"post","link":"http:\/\/bangla.sitestree.com\/?p=7862","title":{"rendered":"\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09a1\u09c7\u099f\u09be \u099f\u09be\u0987\u09aa (JavaScript Data Types)"},"content":{"rendered":"

\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09a1\u09c7\u099f\u09be \u099f\u09be\u0987\u09aa (JavaScript Data Types)<\/h2>\n

\u09b2\u09bf\u0996\u09c7\u099b\u09c7\u09a8\u0983 \u09ae\u09cb\u09b9\u09be\u09ae\u09cd\u09ae\u09be\u09a6 \u0986\u09ae\u09bf\u09b0\u09c1\u09b2 \u0987\u09b8\u09b2\u09be\u09ae (\u0986\u09b0\u09bf\u09ab)<\/p>\n

\u0993\u09df\u09c7\u09ac \u09a1\u09bf\u099c\u09be\u0987\u09a8\u09be\u09b0 \u0985\u09cd\u09af\u09be\u09a8\u09cd\u09a1 \u09a1\u09c7\u09ad\u09c7\u09b2\u09aa\u09be\u09b0<\/p>\n

 <\/p>\n

\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09a1\u09c7\u099f\u09be \u099f\u09be\u0987\u09aa\u09c7\u09b0 \u09a7\u09be\u09b0\u09a8\u09be<\/h2>\n

\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f\u09c7 \u09a1\u09c7\u099f\u09be \u099f\u09be\u0987\u09aa \u098f\u0995\u099f\u09bf \u0997\u09c1\u09b0\u09c1\u09a4\u09cd\u09ac\u09aa\u09c2\u09b0\u09cd\u09a3 \u09ac\u09bf\u09b7\u09df\u0964<\/p>\n

\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u098f\u09b0 \u09a1\u09c7\u099f\u09be \u099f\u09be\u0987\u09aa \u0997\u09c1\u09b2\u09cb \u09b9\u09b2\u0983 (String, Number, Boolean, Array, Object.) \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982, \u09a8\u09be\u09ae\u09cd\u09ac\u09be\u09b0, \u09ac\u09c1\u09b2\u09bf\u09af\u09bc\u09be\u09a8, \u0985\u09cd\u09af\u09be\u09b0\u09c7, \u0985\u09ac\u099c\u09c7\u0995\u09cd\u099f \u0964 \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae\u09bf\u0982 \u0995\u09b0\u09a4\u09c7 \u098f\u0987 \u099f\u09be\u0987\u09aa\u0997\u09c1\u09b2\u09cb \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09be \u09b9\u09df\u09c7 \u09a5\u09be\u0995\u09c7 \u0964<\/p>\n

\u09af\u09c7\u09ae\u09a8\u0983<\/p>\n

var lastName = “Johnson”;<\/p>\n

\u0989\u09aa\u09b0\u09c7\u09b0 \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f\u099f\u09bf \u098f\u0995\u099f\u09bf \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u099f\u09be\u0987\u09aa \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u0964<\/p>\n

 <\/p>\n

var length = 16;<\/p>\n

\u0989\u09aa\u09b0\u09c7\u09b0 \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f\u099f\u09bf \u098f\u0995\u099f\u09bf \u09a8\u09be\u09ae\u09cd\u09ac\u09be\u09b0 \u099f\u09be\u0987\u09aa \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u0964<\/p>\n

 <\/p>\n

var cars = [“Saab”, “Volvo”, “BMW”];<\/p>\n

\u0989\u09aa\u09b0\u09c7\u09b0 \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f\u099f\u09bf \u098f\u0995\u099f\u09bf \u0985\u09cd\u09af\u09be\u09b0\u09c7 \u099f\u09be\u0987\u09aa \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u0964<\/p>\n

 <\/p>\n

var x = {firstName:”John”, lastName:”Doe”};<\/p>\n

\u0989\u09aa\u09b0\u09c7\u09b0 \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f\u099f\u09bf \u098f\u0995\u099f\u09bf \u0985\u09ac\u099c\u09c7\u0995\u09cd\u099f \u099f\u09be\u0987\u09aa \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u0964<\/p>\n

 <\/p>\n

 <\/p>\n

\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 (JavaScript String)<\/h2>\n

\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982\u0997\u09c1\u09b2\u09cb \u09b8\u09be\u09a7\u09be\u09b0\u09a3\u09a4 \u0995\u09df\u0995\u099f\u09bf \u0985\u0995\u09cd\u09b7\u09b0\u09b0\u09c7 \u09b8\u09ae\u09b7\u09cd\u099f\u09bf \u09b9\u09df\u09c7 \u09a5\u09be\u0995\u09c7 \u0964 \u09af\u09c7\u09ae\u09a8\u0983 \u201ckamal\u201d<\/p>\n

\u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u0997\u09c1\u09b2\u09cb\u00a0 single quotes \u2018\u2019 \u0985\u09a5\u09ac\u09be double quotes \u201c\u201d \u098f\u09b0 \u09ad\u09bf\u09a4\u09b0 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u09b9\u09df\u09c7 \u09a5\u09be\u0995\u09c7 \u0964<\/p>\n

\u09af\u09c7\u09ae\u09a8\u0983<\/p>\n

var carName = ” kamal”;\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0[ \u098f\u0996\u09be\u09a8\u09c7 double quotes \u201c\u201d \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u09b9\u09df\u09c7\u099b\u09c7 ]
\nvar carName = ‘ kamal’;\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0[ \u098f\u0996\u09be\u09a8\u09c7 single quotes \u2018\u2019 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u09b9\u09df\u09c7\u099b\u09c7 ]<\/p>\n

 <\/p>\n

\u0986\u09aa\u09a8\u09bf \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982 \u098f\u09b0 \u09ad\u09bf\u09a4\u09b0\u09c7 quotes \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09a4\u09c7 \u09aa\u09be\u09b0\u09c7\u09a8 \u0964<\/p>\n

 <\/p>\n

\u09af\u09c7\u09ae\u09a8\u0983<\/p>\n

var answer = “It’s alright”;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0[double quotes \u201c\u201d \u098f\u09b0 \u09ad\u09bf\u09a4\u09b0 single quote \u2018\u2019]
\nvar answer = “He is called ‘Johnny'”;\u00a0\u00a0 \u00a0\u00a0[double quotes \u201c\u201d \u098f\u09b0 \u09ad\u09bf\u09a4\u09b0 single quotes \u2018\u2019]
\nvar answer = ‘He is called “Johnny”‘;\u00a0\u00a0\u00a0 [single quotes \u2018\u2019 \u098f\u09b0 \u09ad\u09bf\u09a4\u09b0 double quotes \u201c\u201d]<\/p>\n

 <\/p>\n

 <\/p>\n

\u0995\u09cb\u09a1 \u0997\u09c1\u09b2\u09cb \u09a8\u09bf\u099c\u09c7 \u09aa\u09cd\u09b0\u09df\u09cb\u0997 \u0995\u09b0\u09c1\u09a8\u0983<\/p>\n

DOCTYPE html><\/p>\n

<html><\/p>\n

<body><\/p>\n

 <\/p>\n

<p id=”demo”><\/p><\/p>\n

 <\/p>\n

<script><\/p>\n

var carName1 = “Volvo XC60”;<\/p>\n

var carName2 = ‘Volvo XC60’;<\/p>\n

var answer1 = “It’s alright”;<\/p>\n

var answer2 = “He is called ‘Johnny'”;<\/p>\n

var answer3 = ‘He is called “Johnny”‘;<\/p>\n

 <\/p>\n

document.getElementById(“demo”).innerHTML =<\/p>\n

carName1 + ”
\n” +<\/p>\n

carName2 + ”
\n” +<\/p>\n

answer1 + ”
\n” +<\/p>\n

answer2 + ”
\n” +<\/p>\n

answer3;<\/p>\n

<\/script><\/p>\n

 <\/p>\n

<\/body><\/p>\n

<\/html><\/p>\n

 <\/p>\n

\u00a0<\/strong><\/p>\n

\u00a0<\/strong><\/p>\n

\u00a0<\/strong><\/p>\n

\u00a0<\/strong><\/p>\n

\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09a8\u09be\u09ae\u09cd\u09ac\u09be\u09b0 (JavaScript Numbers)<\/h2>\n

\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f\u099f\u09c7 \u09b6\u09c1\u09a7\u09c1 \u09ae\u09be\u09a4\u09cd\u09b0 \u098f\u0995 \u09aa\u09cd\u09b0\u0995\u09be\u09b0\u09c7\u09b0 \u09a8\u09be\u09ae\u09cd\u09ac\u09be\u09b0 \u0986\u099b\u09c7 \u0964 \u09a8\u09be\u09ae\u09cd\u09ac\u09be\u09b0\u0997\u09c1\u09b2\u09cb \u09a1\u09c7\u09b8\u09bf\u09ae\u09cd\u09af\u09be\u09b2 \u098f\u09ac\u0982 \u09a1\u09c7\u09b8\u09bf\u09ae\u09cd\u09af\u09be\u09b2 \u099b\u09be\u09dc\u09be\u0993 \u09b2\u09c7\u0996\u09be \u09b9\u09a4\u09c7 \u09aa\u09be\u09b0\u09c7 \u0964<\/p>\n

\u09af\u09c7\u09ae\u09a8\u0983<\/p>\n

var x1 = 34.00;\u00a0\u00a0\u00a0\u00a0[\u09a1\u09c7\u09b8\u09bf\u09ae\u09cd\u09af\u09be\u09b2 \u09a6\u09bf\u09df\u09c7 \u09b2\u09c7\u0996\u09be]
\nvar x2 = 34;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0[\u09a1\u09c7\u09b8\u09bf\u09ae\u09cd\u09af\u09be\u09b2 \u099b\u09be\u09dc\u09be \u09b2\u09c7\u0996\u09be]<\/p>\n

 <\/p>\n

\u0985\u09a4\u09bf\u09b0\u09bf\u0995\u09cd\u09a4 \u09ac\u09dc \u0985\u09a5\u09ac\u09be \u0985\u09a4\u09bf\u09b0\u09bf\u0995\u09cd\u09a4 \u099b\u09cb\u099f \u09a8\u09be\u09ae\u09cd\u09ac\u09be\u09b0 \u0997\u09c1\u09b2\u09cb e \u09a6\u09cd\u09ac\u09be\u09b0\u09be \u09b2\u09c7\u0996\u09be \u09b9\u09df \u0964<\/p>\n

\u09af\u09c7\u09ae\u09a8\u0983<\/p>\n

var y = 123e5;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 [ \u098f\u0996\u09be\u09a8\u09c7 123e5;=12300000 \u09b9\u09ac\u09c7]
\nvar z = 123e-5;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 [\u098f\u0996\u09be\u09a8\u09c7 123e-5;= 0.00123 \u09b9\u09ac\u09c7]<\/p>\n

 <\/p>\n

\u09a8\u09bf\u09b0\u09cd\u09a6\u09bf\u09b7\u09cd\u099f \u09a8\u09be\u09ae\u09cd\u09ac\u09be\u09b0 \u098f\u09b0 \u09aa\u09b0\u09c7 e5 \u09a6\u09bf\u09b2\u09c7 \u0985\u0987 \u09a8\u09be\u09ae\u09cd\u09ac\u09be\u09b0 \u098f\u09b0 \u09aa\u09b0\u09c7 \u09aa\u09be\u0981\u099a\u099f\u09bf \u09e6 \u09af\u09cb\u0997 \u09b9\u09ac\u09c7 \u0986\u09b0 \u00a0e-5 \u09a6\u09bf\u09b2\u09c7 \u0985\u09af\u09c1\u09a4 \u098f\u09b0 \u0986\u0997\u09c7 \u09aa\u09df\u09c7\u09a8\u09cd\u099f \u09b9\u09ac\u09c7 \u0964<\/p>\n

 <\/p>\n

\u0995\u09cb\u09a1 \u0997\u09c1\u09b2\u09cb \u09a8\u09bf\u099c\u09c7 \u09aa\u09cd\u09b0\u09df\u09cb\u0997 \u0995\u09b0\u09c1\u09a8\u0983<\/p>\n

DOCTYPE html><\/p>\n

<html><\/p>\n

<body><\/p>\n

 <\/p>\n

<p id=”demo”><\/p><\/p>\n

 <\/p>\n

<script><\/p>\n

var x1 = 34.00;<\/p>\n

var x2 = 34;<\/p>\n

var y = 123e5;<\/p>\n

var z = 123e-5;<\/p>\n

 <\/p>\n

document.getElementById(“demo”).innerHTML = x1 + ”
\n” + x2 + ”
\n” + y + ”
\n” + z<\/p>\n

<\/script><\/p>\n

 <\/p>\n

<\/body><\/p>\n

<\/html><\/p>\n

 <\/p>\n

 <\/p>\n

\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09ac\u09c1\u09b2\u09bf\u09af\u09bc\u09be\u09a8 (JavaScript Booleans)<\/h2>\n

\u09ac\u09c1\u09b2\u09bf\u09af\u09bc\u09be\u09a8 \u098f\u09b0 \u09b6\u09c1\u09a7\u09c1 \u09a6\u09c1\u0987\u099f\u09bf \u09ae\u09be\u09a8 \u0986\u099b\u09c7 \u0964\u00a0 \u09b8\u09a4\u09cd\u09af \u0993 \u09ae\u09bf\u09a5\u09cd\u09af\u09be \u0964<\/p>\n

\u09af\u09c7\u09ae\u09a8\u0983<\/p>\n

var x = true;
\nvar y = false;<\/p>\n

 <\/p>\n

\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u0985\u09cd\u09af\u09be\u09b0\u09c7 (JavaScript Arrays)<\/p>\n

\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u0985\u09cd\u09af\u09be\u09b0\u09c7 \u0997\u09c1\u09b2\u09cb \u09a4\u09c3\u09a4\u09c0\u09df \u09ac\u09a8\u09cd\u09a7\u09a8\u09c0 \u09a6\u09cd\u09ac\u09be\u09b0\u09be \u09b2\u09c7\u0996\u09be \u09b9\u09df\u0964\u00a0 \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u0985\u09cd\u09af\u09be\u09b0\u09c7 \u0986\u0987\u099f\u09c7\u09ae \u0997\u09c1\u09b2\u09cb \u0995\u09ae\u09be \u09a6\u09cd\u09ac\u09be\u09b0\u09be \u0986\u09b2\u09be\u09a6\u09be \u0995\u09b0\u09be \u09b9\u09df \u0964<\/p>\n

\u0995\u09cb\u09a1 \u0997\u09c1\u09b2\u09cb \u09a6\u09c7\u0996\u09a4\u09c7 \u098f\u09b0\u0995\u09ae \u09b9\u09df\u0983<\/p>\n

var cars = [“Saab”, “Volvo”, “BMW”];<\/p>\n

 <\/p>\n

\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u00a0\u0985\u09ac\u099c\u09c7\u0995\u09cd\u099f [JavaScript Objects]<\/p>\n

\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u0985\u09ac\u099c\u09c7\u0995\u09cd\u099f \u0997\u09c1\u09b2\u09cb \u09a6\u09cd\u09ac\u09bf\u09a4\u09c0\u09df \u09ac\u09a8\u09cd\u09a7\u09a8\u09c0 \u09a6\u09cd\u09ac\u09be\u09b0\u09be \u09b2\u09c7\u0996\u09be \u09b9\u09df\u0964\u00a0 \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u0985\u09ac\u099c\u09c7\u0995\u09cd\u099f \u0986\u0987\u099f\u09c7\u09ae \u0997\u09c1\u09b2\u09cb \u0995\u09ae\u09be \u09a6\u09cd\u09ac\u09be\u09b0\u09be \u0986\u09b2\u09be\u09a6\u09be \u0995\u09b0\u09be \u09b9\u09df \u0964<\/p>\n

\u0995\u09cb\u09a1 \u0997\u09c1\u09b2\u09cb \u09a6\u09c7\u0996\u09a4\u09c7 \u098f\u09b0\u0995\u09ae \u09b9\u09df\u0983<\/p>\n

var person = {firstName:”John”, lastName:”Doe”, age:50, eyeColor:”blue”};<\/p>\n","protected":false},"excerpt":{"rendered":"

\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09a1\u09c7\u099f\u09be \u099f\u09be\u0987\u09aa (JavaScript Data Types) \u09b2\u09bf\u0996\u09c7\u099b\u09c7\u09a8\u0983 \u09ae\u09cb\u09b9\u09be\u09ae\u09cd\u09ae\u09be\u09a6 \u0986\u09ae\u09bf\u09b0\u09c1\u09b2 \u0987\u09b8\u09b2\u09be\u09ae (\u0986\u09b0\u09bf\u09ab) \u0993\u09df\u09c7\u09ac \u09a1\u09bf\u099c\u09be\u0987\u09a8\u09be\u09b0 \u0985\u09cd\u09af\u09be\u09a8\u09cd\u09a1 \u09a1\u09c7\u09ad\u09c7\u09b2\u09aa\u09be\u09b0   \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09a1\u09c7\u099f\u09be \u099f\u09be\u0987\u09aa\u09c7\u09b0 \u09a7\u09be\u09b0\u09a8\u09be \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f\u09c7 \u09a1\u09c7\u099f\u09be \u099f\u09be\u0987\u09aa \u098f\u0995\u099f\u09bf \u0997\u09c1\u09b0\u09c1\u09a4\u09cd\u09ac\u09aa\u09c2\u09b0\u09cd\u09a3 \u09ac\u09bf\u09b7\u09df\u0964 \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u098f\u09b0 \u09a1\u09c7\u099f\u09be \u099f\u09be\u0987\u09aa \u0997\u09c1\u09b2\u09cb \u09b9\u09b2\u0983 (String, Number, Boolean, Array, Object.) \u09b8\u09cd\u099f\u09cd\u09b0\u09bf\u0982, \u09a8\u09be\u09ae\u09cd\u09ac\u09be\u09b0, \u09ac\u09c1\u09b2\u09bf\u09af\u09bc\u09be\u09a8, \u0985\u09cd\u09af\u09be\u09b0\u09c7, \u0985\u09ac\u099c\u09c7\u0995\u09cd\u099f \u0964 \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae\u09bf\u0982 \u0995\u09b0\u09a4\u09c7 \u098f\u0987 \u099f\u09be\u0987\u09aa\u0997\u09c1\u09b2\u09cb \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09be \u09b9\u09df\u09c7 \u09a5\u09be\u0995\u09c7 \u0964 \u09af\u09c7\u09ae\u09a8\u0983 var … <\/p>\n

Continue reading<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[65,136],"tags":[378,7,738,749],"class_list":["post-7862","post","type-post","status-publish","format-standard","hentry","category-javascript-complete-courses","category-javascript-frameworks","tag-data-type","tag-javascript","tag-738","tag-749","item-wrap"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":7134,"url":"http:\/\/bangla.sitestree.com\/?p=7134","url_meta":{"origin":7862,"position":0},"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 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\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 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\u09aa\u09a6\u09cd\u09a7\u09a4\u09bf\u0983\u2026","rel":"","context":"In "JavaScript"","block_context":{"text":"JavaScript","link":"http:\/\/bangla.sitestree.com\/?cat=65"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":7077,"url":"http:\/\/bangla.sitestree.com\/?p=7077","url_meta":{"origin":7862,"position":3},"title":"\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09ad\u09c7\u09b0\u09bf\u09df\u09c7\u09ac\u09b2 (JavaScript Variables)","author":"Author-Check- Article-or-Video","date":"March 21, 2015","format":false,"excerpt":"\u099c\u09be\u09ac\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09ad\u09c7\u09b0\u09bf\u09af\u09bc\u09c7\u09ac\u09b2 \u09ae\u09cb\u0983 \u09b0\u09ab\u09bf\u0995\u09c1\u09b2 \u0987\u09b8\u09b2\u09aa\u09be\u09ae \u00a0 \u099c\u09be\u09ac\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09ad\u09c7\u09b0\u09bf\u0987\u09df\u09c7\u09ac\u09b2 \u09b9\u099a\u09cd\u099b\u09c7 \u09a4\u09a5\u09cd\u09af\u09cd\u09af\u09c7\u09b0 \u09ae\u09be\u09a8 \u09b8\u0982\u09b0\u0995\u09cd\u09b7\u09a3\u09c7\u09b0 \u099c\u09a8\u09cd\u09af \u098f\u0995\u099f\u09bf \u0995\u09a8\u099f\u09c7\u0987\u09a8\u09be\u09b0 \u0964 \u09ad\u09c7\u09b0\u09bf\u09df\u09c7\u09ac\u09b2\u09b8 \u0995\u09c7 \u09a8\u09bf\u099a\u09c7 x, y, z \u00a0\u098f\u09b0 \u09b8\u09be\u09b9\u09be\u09af\u09cd\u09af\u09c7 \u0989\u09a6\u09be\u09b9\u09b0\u09a3 \u09b9\u09bf\u09b8\u09be\u09ac\u09c7 \u09a6\u09c7\u09df\u09be \u09b9\u09b2 \u0964 Var x = 5; Var y = 6; Var z = x+y; \u00a0 \u0989\u09aa\u09b0\u09c7\u09b0 \u0989\u09a6\u09be\u09b9\u09b0\u09a3\u09c7 \u09af\u09be\u09b9\u09be \u09ac\u09c1\u099d\u09be\u09df \u09a4\u09be \u09b9\u09b2\u0983- X \u098f\u09b0\u2026","rel":"","context":"In "JavaScript"","block_context":{"text":"JavaScript","link":"http:\/\/bangla.sitestree.com\/?cat=65"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":7132,"url":"http:\/\/bangla.sitestree.com\/?p=7132","url_meta":{"origin":7862,"position":4},"title":"JavaScript typeof, null, and undefined. \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u099f\u09be\u0987\u09aa\u0985\u09ab, \u09a8\u09be\u09b2 \u098f\u09ac\u0982 \u0986\u09a8\u09a1\u09bf\u09ab\u09be\u0987\u09a8\u09cd\u09a1","author":"Author-Check- Article-or-Video","date":"March 21, 2015","format":false,"excerpt":"\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u099f\u09be\u0987\u09aa\u0985\u09ab, \u09a8\u09be\u09b2 \u098f\u09ac\u0982 \u0986\u09a8\u09a1\u09bf\u09ab\u09be\u0987\u09a8\u09cd\u09a1 \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u099f\u09be\u0987\u09aa\u0985\u09ab \u0985\u09aa\u09be\u09b0\u09c7\u099f\u09b0: \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f\u09c7 \u0995\u09cb\u09a8\u09cb \u09a1\u09be\u099f\u09be\u09b0 \u099f\u09be\u0987\u09aa \u099c\u09be\u09a8\u09be\u09b0 \u099c\u09a8\u09cd\u09af \u099f\u09be\u0987\u09aa\u0985\u09ab \u0985\u09aa\u09be\u09b0\u09c7\u099f\u09b0 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09be \u09b9\u09df\u0964 \u0989\u09a6\u09be\u09b9\u09b0\u09a3: typeof \"John\" \/\/ Returns string typeof 3.14 \/\/ Returns number typeof false \/\/ Returns boolean typeof [1,2,3,4] \/\/ Returns object typeof {name:'John', age:34} \/\/ Returns object \u09a8\u09be\u09b2: \u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f\u09c7 \u09a8\u09be\u09b2 \u09ae\u09be\u09a8\u09c7\u2026","rel":"","context":"In 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\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 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