因Web頁面展示問題,經常需要將日期轉換爲某種格式,但是JavaScript腳本語言官方卻沒有對其提供,程序員都很懶的,咱們自個來寫,自個來擴展!!
/**
* Author Joyce.Luo 11:57:35 prepared in 2015.02.10
* JavaScript language Methods: format(), based on the replace() method to realize
* For example:
* new Date().format("yyyy-MM-dd HH:mm:ss");
* new Date().format("yyyy-MM-dd");
* @param {} pattern the pattern describing the date and time format
* @return {} returns a formatted string date
*/
Date.prototype.format = function(pattern){
var o = {
"M+" : this.getMonth()+1, /*Month*/
"d+" : this.getDate(), /*Day*/
"h+" : this.getHours(), /*Hours*/
"m+" : this.getMinutes(), /*Minute*/
"s+" : this.getSeconds(), /*Seconds*/
"q+" : Math.floor((this.getMonth()+3)/3), /*Quarter*/
"S" : this.getMilliseconds() /*Millisecond*/
};
if (/(y+)/.test(pattern))
pattern = pattern.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
for (var k in o)
if (new RegExp("(" + k + ")").test(pattern))
pattern = pattern.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
return pattern;
}
其實這個還可以優化,但是時間問題,我這就不改動了,大家有興趣的可以在評論中重寫