Date扩展 正则匹配

 

 

<script>Date.prototype.format=function(){var d=this;//严格匹配 yyyy-mm-dd hh-mm-ssvar reg1=/yyyy-mm-dd hh-m-s/;//匹配 yyyy*mm*dd hh*mm*ss  *为任意一个除\r\n之外的字符 中间为任意多个空格var reg2=/y{4}.m{2}.dd\s+hh.mm.ss/;reg1.test(arguments[0]);reg2.test(arguments[0]);return d.getFullYear()+'-'+ d.getMonth()+'-'+ d.getDate()+' '+ d.getHours()+'-'+ d.getMinutes()+'-'+ d.getSeconds();};var date=new Date();console.log(date.format('yyyy—mm-dd hh-mm-ss'));console.log(date);var str='oooo';var reg3=/o+/,reg4=/o+?/;console.log(reg3.exec(str));console.log(reg4.exec(str));console.log(str.match(reg4));
</script>