获取字符串中的所有数字并推送到数组(javascript) [英] get all numbers in a string and push to an array (javascript)

问题描述

所以，如果我有以下字符串:

So if I had the following string:

'(01) Kyle Hall - Osc (04) Cygnus - Artereole (07) Forgemasters - Metalic (10) The Todd Terry Project - Back to the Beat (14) Broken Glass - Style of the Street'

我可以浏览字符串，并将字符串中的任何数字推入数组，如下所示:

I could look through the string and push any numbers in the string to an array, which would look like this:

[01,04,07,10,14]

推荐答案

使用正则表达式:

var numbers = str.match(/\d+/g);

这将导致["01", "04", "07", "10", "14"](字符串数组).如果元素的类型对您很重要，您可以继续按.map(Number)转换为数字:

This will result in ["01", "04", "07", "10", "14"] (array of strings). If the type of the elements matters to you you can follow up with .map(Number) to convert to numbers:

var reallyNumbers = str.match(/\d+/g).map(Number);

这将导致[1, 4, 7, 10, 14].

请注意， map 在版本9之前的IE中不可用，因此根据您的兼容性要求，您可能需要使用polyfill. MDN上有一个现成的.

Note that map is not available in IE earlier than version 9, so depending on your compat requirements you might need a polyfill. There's a ready-made one on MDN.

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