我如何在js中拆分数组？

Question

我如何在js中分割字符串以获得结果：

result = ["post_address", "location", "area"]

这是问题吗？需要帮助re

let re = ???
let arr = "post_address[location][area]".split(re)

Answer 1

只需按/\[|\]/拆分，然后移除空字符串。

var output = "post_address[location][area]".split(/\[|\]/).filter((s)=>s.length > 0);

console.log(output);

Answer 2

您可以像这样使用正则表达式：

var re = /^(\w*)\[(\w*)\]\[(\w*)\]$/gi;

Answer 3

使用Lodash：

const str = "post_address[location][area]";
const output = _.compact(_.split(str, /\[|\]/));
console.log(output);

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>

Answer 4

有更短的方式

实际上与

相同

'post_address[location][area]'.split(/[^\w]+/).filter(i => i)

＆＃13;

＆＃13;

console.log(
    'post_address[location][area]'.match(/(\w+)/g)
);

console.log(
    'post_address[location][area]'.split(/[^\w]+/).filter(i => i)
);

＆＃13;

＆＃13;

＆＃13;