方法：eval()
eg:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>将字符串作为函数名调用函数</title>
</head>
<body>
<span>指标：</span>
<select id="zhibiao">
<option selected="" value="总体">总体</option>
<option value="queryManagementVolume">办理量</option>
<option value="queryTimeConsuming">平均耗时</option>
<option value="queryOvertimePercent">超时占比</option>
</select>
</body>
<script src="../js/jquery.js"></script>
<script>
$(document).on("change",‘select#zhibiao‘,function(){
var fn=$(this).val();
/* fn(); */
eval(fn+"()");
});
function queryManagementVolume(){
console.log("查询办理量");
}
function queryTimeConsuming(){
console.log("查询平均耗时");
}
function queryOvertimePercent(){
console.log("查询超时占比");
}
</script>
</html>
var slideArr=new Array( ‘slideLeft‘, ‘slideTop‘, ‘slideRight‘, ‘slideBottom‘, ‘slideLeftTop‘, ‘slideTopRight‘, ‘slideRightBottom‘, ‘slideBottomLeft‘ ); function slideRandom(arr=slideArr,width,height,time) { var length=slideArr.length; var index=Math.floor(Math.random()*length); var functionName=slideArr[index]; //alert(functionName); eval(functionName+‘(width,height,time)‘); }
原文：https://www.cnblogs.com/juicy-initial/p/9961237.html