How to define methods in javascript

How to define methods in JavaScript: 1. Definition formula, the code is [function test(age)]; 2. Variable formula, the code is [var print=function(name)].

The operating environment of this tutorial: Windows 7 system, JavaScript version 1.8.5, DELL G3 computer.

How to define methods in JavaScript:

There are two ways to define methods (functions) in JavaScript:

function funname（var1，var2）{要执行的具体代码}

var funname =function（参数a，参数b...）｛具体方法动作｝

The difference between the two ways of defining functions: the first is called definitional expression, and the second is called variable expression. In practical applications, there is no difference between the two, but there is a difference in the order in the call: the definition can be defined after the call, but the variable cannot.

Examples are as follows:

1. Definition formula

<script>
function test(age){     //先定义方法，再调用
   console.log(age);
}
test(23);
</script>

2. Variable formula

<script>
   var print=function(name){
       console.log(name);
   }
   print("tom");
</script>

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