Time format conversion method
Applicable formats :
yyyy / yyyy-mm / yyyy-mm-dd / yyyy-mm-dd hh:mm:ss /
Date.prototype.format = function(format) {
var o = {
"M+": this.getMonth() + 1, //month
"d+": this.getDate(), //day
"h+": this.getHours(), //hour
"m+": this.getMinutes(), //minute
"s+": this.getSeconds(), //second
"q+": Math.floor((this.getMonth() + 3) / 3), //quarter
"S": this.getMilliseconds() //millisecond
}
if (/(y+)/.test(format)) format = format.replace(RegExp.$1,
(this.getFullYear() + "").substr(4 - RegExp.$1.length));
for (var k in o)
if (new RegExp("(" + k + ")").test(format))
format = format.replace(RegExp.$1,
RegExp.$1.length == 1 ? o[k] :
("00" + o[k]).substr(("" + o[k]).length));
return format;
};
function ChangeDateType(TM, TMformat) {
let result = TM;
try {
result = TM.format(TMformat);
} catch (e) {
//TODO handle the exception
};
return result;
}
export default ChangeDateType;
How to use :
import ChangeDateType from "../../路径";
// 倒推时间
let nowTM = new Date();
// -30 意为倒推30天
let lastTM = new Date(nowTM.setDate(nowTM.getDate() - 30));
// 使用时将获取的日期传入方法，并将日期格式传输。
// 此时回执便是倒推30天日期 如果传入 new Date() 日期便是今日
let beginTM = ChangeDateType(lastTM, 'yyyy-MM-dd');
let endTM = ChangeDateType(new Date(), 'yyyy-MM-dd');The following code is an excerpt from the network. The original address is lost. It’s true. Sorry.
Date.prototype.format = function(format) {
var o = {
"M+": this.getMonth() + 1, //month
"d+": this.getDate(), //day
"h+": this.getHours(), //hour
"m+": this.getMinutes(), //minute
"s+": this.getSeconds(), //second
"q+": Math.floor((this.getMonth() + 3) / 3), //quarter
"S": this.getMilliseconds() //millisecond
}
if (/(y+)/.test(format)) format = format.replace(RegExp.$1,
(this.getFullYear() + "").substr(4 - RegExp.$1.length));
for (var k in o)
if (new RegExp("(" + k + ")").test(format))
format = format.replace(RegExp.$1,
RegExp.$1.length == 1 ? o[k] :
("00" + o[k]).substr(("" + o[k]).length));
return format;
};