import { Provide } from "@midwayjs/decorator"
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/**
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* 系统用户
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*/
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@Provide()
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export class DateUtil {
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date_format(date_str, format) {
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// = 'YY-MM-DD hh:mm:ss'
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let date = new Date(date_str)
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let year = date.getFullYear(),
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month = date.getMonth() + 1, //月份是从0开始的
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day = date.getDate(),
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hour = date.getHours(),
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min = date.getMinutes(),
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sec = date.getSeconds()
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let preArr = Array.apply(null, Array(10)).map(function (elem, index) {
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return '0' + index
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}) ////开个长度为10的数组 格式为 00 01 02 03
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let newTime = format
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.replace(/YY/g, year)
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.replace(/MM/g, preArr[month] || month)
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.replace(/DD/g, preArr[day] || day)
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.replace(/hh/g, preArr[hour] || hour)
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.replace(/mm/g, preArr[min] || min)
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.replace(/ss/g, preArr[sec] || sec)
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return newTime
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}
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/**
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* 当月第一天和最后一天
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* @param {*} date
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*/
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month_first_end(date) {
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let M = typeof date == 'undefined' ? new Date() : date.getMonth()
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let Y = typeof date == 'undefined' ? new Date() : date.getFullYear()
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let day = new Date(Y, M + 1, 0).getDate()
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let enddate = new Date(Y, M, day)
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let result = {
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start: this.date_format(new Date(Y, M, 1), 'YY-MM-DD'),
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end: this.date_format(enddate, 'YY-MM-DD')
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}
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return result
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}
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}
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