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How to use js after assigning function to variable
- angryTomOriginal
- 2019-07-15 15:48:386666browse
When writing code, we sometimes encounter this situation. Someone assigns a function to a variable. How should we call this function at this time?
Let us speak in code.
First we assign a function to a variable
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<script>
var a = function ass(){alert("hello")}; //将函数赋值给变量
</script>
<body>
</body>
</html>Then we add a click event to the button and call the function through the variable
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<script>
var a = function ass(){alert("hello")}; //将函数赋值给变量
</script>
<body>
<button onclick="a()" >单击事件</button>
</body>
</html>Finally let’s take a look at the effect
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