JS数组扁平化(flat)方法总结详解

let ary = [1, [2, [3, [4, 5]]], 6];let str = JSON.stringify(ary);

arr_flat = arr.flat(Infinity);

ary = str.replace(/(/[/]))/g, '').split(',');

str = str.replace(/(/[/]))/g, '');str = '[' + str + ']';ary = JSON.parse(str);

let result = [];let fn = function(ary) {for(let i = 0; i < ary.length; i++) }{let item = ary[i];if (Array.isArray(ary[i])){fn(item);} else {result.push(item);}}}

function flatten(ary) {return ary.reduce((pre, cur) => {return pre.concat(Array.isArray(cur) ? flatten(cur) : cur);})}let ary = [1, 2, [3, 4], [5, [6, 7]]]console.log(ary.MyFlat(Infinity))

while (ary.some(Array.isArray)) {ary = [].concat(...ary);}