如何动态调用JavaScript对象的方法 [英] How do I dynamically call a JavaScript object's method

问题描述

我认为我在这里遗漏了一些非常简单的东西.我想将一个对象和方法传递给函数.这篇文章的原因太长了. :-)

I think that I'm missing something very simple here. I want to pass a function an object and the method to call. The reasons why are too long for this post. :-)

var myObj = new someObject();
var funcName = "hide";

function callObject(myObj,funcName){
    obj.hide(); //this works     
    obj[funcName]; //doesn't work
    obj.eval(funcName); //doesn't work either.. tried many variations
}

谢谢！

推荐答案

您需要在通话中加上括号，如下所示:

You need the parenthesis on the call, like this:

obj[funcName]();

您可以像这样工作:

eval("obj." + funcName + "()");

，但是有很多原因不这样做(安全性，性能，更难调试).

but there are many reasons not to do that (security, performance, harder debugging).

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