下一代Javascript: 卖弄单行代码

来源：互联网发布：python调用adb命令编辑：程序博客网时间：2024/04/29 04:34

Here is a collection of ES6 one liners to show off!

NodeList to Array:

var headings = [ ... document.querySelectorAll('h1') ];

Unique Arrays:

[ ...new Set(array) ]

Destructuring:

var {foo, bar} = {foo: "lorem", bar: "ipsum"};// foo => lorem and bar => ipsum

Swap like a snake:

[a,b] = [b,a]

Max in array?:

Math.max(...array);

List comprehension:

[ for (value of ["Harriet", "178"]) value ].join(" was ");// Would give us "Harriet was 178"// BTW it was Charles Darwin's tortoise.

_map?

[{id: 1}, {id: 2}].map(x => x.id)// [1,2]

Object.isz!

let Object.isz = (x, y) => x === y || Object.is(x, y);//^ Credits to Mark S. Miller.

Is it a hidden file?:

isHidden = (file) => /^\.|~$/.test(file);isHidden(".DS_STORE") // true

Repeat with me:

(0/0+"").repeat("7")+ " BatMan!"// "NaNNaNNaNNaNNaNNaNNaN BatMan!"

If you are using some, please do let me know!Hope it did blew your mind! ;)

原文：http://h3manth.com/new/blog/2014/es6-one-liners-to-show-off/

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