<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
</head>
<body>
<script type="text/javascript">
function tab(){
return function(){
return 1;
}
}
var num = tab();
console.log(num());
</script>
</body>
</html>
获取元素样式
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<style type="text/css">
#box {
width: 100px;
height: 100px;
border: #000000 1px solid;
}
</style>
</head>
<body>
<div id="box"> </div>
<script type="text/javascript">
var oBox = document.getElementById('box');
// if(){} 颜色和路径不可以作为条
// 样式是可写不可读(行间样式除外)
// console.log(oBox.style.width);
// 获取样式函数
// console.log(getComputedStyle(oBox)['width']);
// console.log(getComputedStyle(oBox).width);
function getStyle(obj, attr) {
return getComputedStyle(obj)[attr];
}
console.log(getStyle(oBox, 'width'));
</script>
</body>
</html>
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