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)‘);}js中将字符串作为函数名来调用的方法
原文地址：https://www.cnblogs.com/juicy-initial/p/9961237.html