es.shim/lib/cjs/date.js

89 lines
2.3 KiB
JavaScript

/**
* @author yutent<yutent.io@gmail.com>
* @date 2020/09/16 11:54:58
*/
//获取当天是本月第几周
if (!Date.isDate) {
Object.defineProperty(Date, 'isDate', {
value: function(obj) {
return obj && typeof obj === 'object' && obj.getTime ? true : false
},
enumerable: false
})
}
if (!Date.prototype.getFullWeek) {
//获取当天是本年度第几周
Object.defineProperty(Date.prototype, 'getFullWeek', {
value: function() {
let thisYear = this.getFullYear()
let that = new Date(thisYear, 0, 1)
let firstDay = that.getDay()
let numsOfToday = (this - that) / 24 / 360 / 1000
return Math.ceil((numsOfToday + firstDay) / 7)
},
enumerable: false
})
//获取当天是本月第几周
Object.defineProperty(Date.prototype, 'getWeek', {
value: function() {
let today = this.getDate()
let thisMonth = this.getMonth()
let thisYear = this.getFullYear()
let firstDay = new Date(thisYear, thisMonth, 1).getDay()
return Math.ceil((today + firstDay) / 7)
},
enumerable: false
})
}
//时间格式化
if (!Date.prototype.format) {
Object.defineProperty(Date.prototype, 'format', {
value: function(str) {
str = str || 'Y-m-d H:i:s'
let dt = {
fullyear: this.getFullYear(),
year: this.getYear(),
fullweek: this.getFullWeek(),
week: this.getWeek(),
month: this.getMonth() + 1,
date: this.getDate(),
day: this.getDay() + 1,
hours: this.getHours(),
minutes: this.getMinutes(),
seconds: this.getSeconds()
}
let reg = null
dt.g = dt.hours > 12 ? dt.hours - 12 : dt.hours
reg = {
Y: dt.fullyear,
y: dt.year,
m: dt.month < 10 ? '0' + dt.month : dt.month,
n: dt.month,
d: dt.date < 10 ? '0' + dt.date : dt.date,
j: dt.date,
H: dt.hours < 10 ? '0' + dt.hours : dt.hours,
h: dt.g < 10 ? '0' + dt.g : dt.g,
G: dt.hours,
g: dt.g,
i: dt.minutes < 10 ? '0' + dt.minutes : dt.minutes,
s: dt.seconds < 10 ? '0' + dt.seconds : dt.seconds,
W: dt.fullweek,
w: dt.week,
D: dt.day
}
for (let i in reg) {
str = str.replace(new RegExp(i, 'g'), reg[i])
}
return str
},
enumerable: false
})
}
实现部分新API, 以及一些常用的扩展方法。 nodejs和浏览器通用,
JavaScript 100%