在Javascript中向Array对象添加方法？ [英] Add a method to Array object in Javascript?

问题描述

是否可以在javascript中向array（）添加方法？ （我知道原型，但我不想为每个数组添加一个方法，特别是一个）。

Is it possible to add a method to an array() in javascript? (I know about prototypes, but I don't want to add a method to every array, just one in particular).

我想这样做的原因是因为我有以下代码

The reason I want to do this is because I have the following code

function drawChart()
{
    //...
    return [list of important vars]
}

function updateChart(importantVars)
{
    //...
}

var importantVars = drawChart();

updateChart(importantVars);

我希望能够做到这样的事情：

And I want to be able to do something like this instead:

var chart = drawChart();<br>
chart.redraw();

我希望有一种方法可以将方法附加到我返回的 drawChart（）。有什么方法吗？

I was hoping there was a way I could just attach a method to what i'm returning in drawChart(). Any way to do that?

推荐答案

数组是对象，因此可以保存方法等属性：

Arrays are objects, and can therefore hold properties such as methods:

var arr = [];
arr.methodName = function() { alert("Array method."); }

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