- /*將String類型解析為Date類型.
- parseDate('2006-1-1') return new Date(2006,0,1)
- parseDate(' 2006-1-1 ') return new Date(2006,0,1)
- parseDate('2006-1-1 15:14:16') return new Date(2006,0,1,15,14,16)
- parseDate(' 2006-1-1 15:14:16 ') return new Date(2006,0,1,15,14,16);
- parseDate('2006-1-1 15:14:16.254') return new Date(2006,0,1,15,14,16,254)
- parseDate(' 2006-1-1 15:14:16.254 ') return new Date(2006,0,1,15,14,16,254)
- parseDate('不正確的格式') retrun null
- */
- function parseDate(str){
- if(typeof str == 'string'){
- var results = str.match(/^ *(\d{4})-(\d{1,2})-(\d{1,2}) *$/);
- if(results && results.length>3)
- return new Date(parseInt(results[1]),parseInt(results[2]) -1,parseInt(results[3]));
- results = str.match(/^ *(\d{4})-(\d{1,2})-(\d{1,2}) +(\d{1,2}):(\d{1,2}):(\d{1,2}) *$/);
- if(results && results.length>6)
- return new Date(parseInt(results[1]),parseInt(results[2]) -1,parseInt(results[3]),parseInt(results[4]),parseInt(results[5]),parseInt(results[6]));
- results = str.match(/^ *(\d{4})-(\d{1,2})-(\d{1,2}) +(\d{1,2}):(\d{1,2}):(\d{1,2})\.(\d{1,9}) *$/);
- if(results && results.length>7)
- return new Date(parseInt(results[1]),parseInt(results[2]) -1,parseInt(results[3]),parseInt(results[4]),parseInt(results[5]),parseInt(results[6]),parseInt(results[7]));
- }
- return null;
- }
-
- /*
- 將Date/String類型,解析為String類型.
- 傳入String類型,則先解析為Date類型
- 不正確的Date,返回 ''
- 如果時間部分為0,則忽略,只返回日期部分.
- */
- function formatDate(v){
- if(typeof v == 'string') v = parseDate(v);
- if(v instanceof Date){
- var y = v.getFullYear();
- var m = v.getMonth() + 1;
- var d = v.getDate();
- var h = v.getHours();
- var i = v.getMinutes();
- var s = v.getSeconds();
- var ms = v.getMilliseconds();
- if(ms>0) return y + '-' + m + '-' + d + ' ' + h + ':' + i + ':' + s + '.' + ms;
- if(h>0 || i>0 || s>0) return y + '-' + m + '-' + d + ' ' + h + ':' + i + ':' + s;
- return y + '-' + m + '-' + d;
- }
- return '';
- }
http://lihui5028.iteye.com/blog/376095