JavaScript Array flat()

Dingyi he yongfa

flat() Fangfa yongyu jiang zihuzu yuan su lianjie dao xin shuzu zhong。

Lingqing kan:

Array map() fangfa

Array flatMap() fangfa

Array filter() fangfa

Array forEach() fangfa

Shi lian

Lishi 1

Chuangjian yi ge xin shuzu, bing bing que zihuzu yuan su lianjie qilai：

const myArr = [[1,2],[3,4],[5,6]];
const newArr = myArr.flat();

Zi ji shi yi yi

Lishi 2

Dui yu duan ceng jia she de shuzu, keyi zhi ding zhankai de shenfu：

const myArr = [1, 2, [3, [4, 5, 6], 7], 8];
const newArr = myArr.flat(2);

Zi ji shi yi yi

Yufa

array.flat(shenfu)

Can shu

Huanhuo zhi

Liulanqi zhi chi

Zi 2020 Nian 1 Yue qi, suoyou xianmodai liulanqi juben zhi chi JavaScript shuzu flat() Fangfa：