JavaScript-获取满足条件的数组元素 [英] JavaScript - get array element fulfilling a condition

问题描述

我正在使用W3C学习JavaScript，但找不到该问题的答案.

I'm learning JavaScript using W3C and I didn't find an answer to this question.

我正在尝试对满足某些条件的数组元素进行一些操作.

I'm trying to make some manipulations on array elements which fulfill some condition.

除了在for循环中的数组元素上运行之外，还有其他方法吗? 也许类似(用其他语言):

Is there a way to do it other than running on the array elements in for loop? Maybe something like (in other languages):

foreach (object t in tArray)
   if (t follows some condition...) t++;

另一件事，有时我想使用元素的值，有时我想将其用作参考.句法上的区别是什么?

another thing, sometimes I want to use the element's value and sometimes I want to use it as a reference. what is the syntactical difference?

我也很高兴在更广泛的网站上获得推荐以学习JavaScript的建议. 谢谢

As well, I'll be happy for recommendations on more extensive sites to learn JavaScript from. thanks

推荐答案

在大多数浏览器(不是IE< = 8)中，数组具有

In most browsers (not IE <= 8) arrays have a filter method, which doesn't do quite what you want but does create you an array of elements of the original array that satisfy a certain condition:

function isGreaterThanFive(x) {
     return x > 5;
}

[1, 10, 4, 6].filter(isGreaterThanFive); // Returns [10, 6]

Mozilla开发人员网络有很多很好的JavaScript资源.

Mozilla Developer Network has a lot of good JavaScript resources.

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