时间格式化
const dateFormatter = (formatter, date) => {
date = (date ? new Date(date) : new Date)
const Y = date.getFullYear() + '',
M = date.getMonth() + 1,
D = date.getDate(),
H = date.getHours(),
m = date.getMinutes(),
s = date.getSeconds()
return formatter.replace(/YYYY|yyyy/g, Y)
.replace(/YY|yy/g, Y.substr(2, 2))
.replace(/MM/g, (M < 10 ? '0' : '') + M)
.replace(/DD/g, (D < 10 ? '0' : '') + D)
.replace(/HH|hh/g, (H < 10 ? '0' : '') + H)
.replace(/mm/g, (m < 10 ? '0' : '') + m)
.replace(/ss/g, (s < 10 ? '0' : '') + s)
}
dateFormatter('YYYY-MM-DD HH:mm', '1995/02/15 13:55') // 1995-02-15 13:55
生成随机UID
const genUid = () => {
var length = 20
var soupLength = genUid.soup_.length
var id = []
for (var i = 0; i < length; i++) {
id[i] = genUid.soup_.charAt(Math.random() * soupLength)
}
return id.join('')
}
genUid.soup_ = '!#$%()*+,-./:;=?@[]^_`{|}~ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'
genUid() // ;l`yCPc9A8IuK}?N6,%}
一行代码去重数组
const list = [1, 1, 2, 3, 6, 45, 8, 5, 4, 6, 5]
const uniqueList = [...new Set(list)] // [1, 2, 3, 6, 45, 8, 5, 4]
