常用javascriptRegex代碼

//字元處理;
//去左右空格;
function trim(s){
  return rtrim(ltrim(s));
}
//去左空格;
function ltrim(s){
  return s.replace( /^s*/, "");
}
//去右空格;
function rtrim(s){
  return s.replace( /s*$/, "");
}
//驗證資訊;
//Null 字元值;
function isempty(s){
 s = trim(s);
 return s.length == 0;
}
//email;
function isemail(s){
 s = trim(s);
  var p = /^[_.0-9a-z-]+@([0-9a-z][0-9a-z-]+.){1,4}[a-z]{2,3}$/i;
  return p.test(s);
}
//數字;
function isnumber(s){
 return !isnan(s);
}
//顏色值;
function iscolor(s){
 s = trim(s);
 if (s.length !=7) return false;
 return s.search(/#[a-fa-f0-9]{6}/) != -1;
}
//手機號碼;
function ismobile(s){
 s = trim(s);
 var p = /13d{9}/;
 return p.test(s);
}
//身份證;
function iscard(s){
 s = trim(s);
 var p = /^d{15}(d{2}[xx0-9])?$/;
 return p.test(s);
}
//地址，url;
function isurl(s){
 s = trim(s).tolowercase();
 var p = /^http://[a-za-z0-9]+.[a-za-z0-9]+[/=?%-&_~`@[]':+!]*([^<>""])*$/;
 return p.test(s);
}
//電話號碼正則;
function isphone(s){
 s = trim(s);
 var p = /^(((d{3}))|(d{3}-))?((0d{2,3})|0d{2,3}-)?[1-9]d{6,7}$/;
 return p.test(s);
}
//郵編正則;
function iszip(s){
 s = trim(s);
 var p = /^[1-9]d{5}$/;
 return p.test(s);
}
//小數;
function isdouble(s){
 s = trim(s);
 var p = /^[-+]?d+(.d+)?$/;
 return p.test(s);
}
//是否整型數pb;
function isinteger(s){
 s = trim(s);
 var p = /^[-+]?d+$/;
 return p.test(s);
}
</script>