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Anonymous functions in JavaScript

Anonymous function:

is a function without a name.

  • Anonymous functions cannot be defined or called individually.

  • Anonymous functions are generally used as data to assign values ??to other variables. You can assign values ??to ordinary variables, array elements, and object properties. 

<!DOCTYPE HTML>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
        <title>php.cn</title>
        <script>
            var a=88 ;//將數(shù)值賦值給變量a，此時變量a就是“數(shù)值型”變量
            var a="asd"; //將字符串賦值給a，此時變量a就是“字符型”變量
            var a=true;  //將布爾值賦值給變量a，此時變量a就是“布爾型”變量
            var a=[10,20];//將數(shù)組賦值給變量a，此時變量a就是“數(shù)組型”變量
            var a=function(name,age){//將函數(shù)值賦值給變量a，此時變量a就是“函數(shù)型”變量
                window.alert("我叫"+name+"今年"+age+"歲");
            }
            //調用函數(shù)
            a("小明",20);
            var b=a;//將變量a的地址，拷貝一份傳給變量b
            b("小白",22);
        </script>
    </head>
    <body>
    </body>
</html>


Continuing Learning
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<!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>php.cn</title> <script> var a=88 ;//將數(shù)值賦值給變量a，此時變量a就是“數(shù)值型”變量 var a="asd"; //將字符串賦值給a，此時變量a就是“字符型”變量 var a=true; //將布爾值賦值給變量a，此時變量a就是“布爾型”變量 var a=[10,20];//將數(shù)組賦值給變量a，此時變量a就是“數(shù)組型”變量 var a=function(name,age){//將函數(shù)值賦值給變量a，此時變量a就是“函數(shù)型”變量 window.alert("我叫"+name+"今年"+age+"歲"); } //調用函數(shù) a("小明",20); var b=a;//將變量a的地址，拷貝一份傳給變量b b("小白",22); </script> </head> <body> </body> </html>
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