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What are the ways to declare a function?

一个新手Original: 2017-09-18 10:32:003668browse

There are three ways to declare a function

1. Ordinary declaration method:

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>三种声明函数的方式</title>
</head>
<body>
	<script>
		function func(m,n){
			alert(m+n);
		}
		func(7,8);
	</script>
</body></html>

Test result:

##2. Use variables Declaration function:

	var func=function(m,n){
			alert(m+n);
		}
		func(9,4);

Test effect:

3. Use constructor declaration:

var func=new Function(&#39;m&#39;,&#39;n&#39;,&#39;alert(m+n)&#39;);
		func(1,7);

Test effect:

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