js 中将多个逗号替换为一个逗号的代码
<scriptlanguage="javascript"> varstr="asdfk,asdf34,,,,,,5345,,,,"; str=str.replace(newRegExp(',+',"gm"),','); alert(str); </script>
比较不错的一个代码:
functiondostr(str){ str=trim(str); varstrarry=unique(str.split(",")); str=strarry.join(","); str=str.replace(/,/ig,","); str=str.replace(/[^0-9,]*/ig,""); str=str.replace(newRegExp(',+',"gm"),','); if(str.substr(0,1)==',')str=str.substr(1); varreg=/,$/gi; str=str.replace(reg,""); returnstr; }