let ary = [1, [2, [3, [4, 5]]], 6];
let str = JSON.stringify(ary);
直接的调用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);
}
}
`
}
第四种处理:
用 reduce 实现数组的 flat 方法
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);
}
原文:https://www.cnblogs.com/hff-syt/p/12422611.html