js常用代码

创建过去七天的数组

var a=  [...Array(7).keys()].map(days => new Date(Date.now() - 86400000 * days));

var b=  [...Array(7).keys()].map(days => new Date(Date.now() + 86400000 * days));

var c=  Math.random().toString(36).substring(2);

q={};location.search.replace(/([^?&=]+)=([^&]+)/g,(_,k,v)=>q[k]=v);q;

随机更改数组元素顺序，混淆数组

{
        let f = (arr) => arr.slice().sort(() => Math.random() - 0.5)
        let q = f([1,2,3,4,5])
        console.log(q)
    }

let color =   '#' + Math.floor(Math.random() * 0xffffff).toString(16).padEnd(6, '0');

let arr = [1,2,3,3,2,1,5,1,6,0,4];
var arrs = [...new Set(arr)];
console.log(arrs)

console.log([...Array(4).keys()])

本文来自投稿，不代表站三界导航立场，如若转载，请注明出处：https://www.zhansanjie.com/article/details/8303.html