改进的email检查js脚本
1
function isEmail(str)
2{
3// are regular expressions supported?
4var supported = 0;
5if (window.RegExp) {
6var tempStr = "a";
7var tempReg = new RegExp(tempStr);
8if (tempReg.test(tempStr)) supported = 1;
9}
10if (!supported)
11return (str.indexOf(".") > 2) && (str.indexOf("@") > 0);
12var r1 = new RegExp("(@.*@)|(\\.\\.)|(@\\.)|(^\\.)");
13var r2 = new RegExp("^.+\\@(\\[?)][a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$");
14return (!r1.test(str) && r2.test(str));
15}
function isEmail(str) 2
{ 3
// are regular expressions supported? 4
var supported = 0; 5
if (window.RegExp) { 6
var tempStr = "a"; 7
var tempReg = new RegExp(tempStr); 8
if (tempReg.test(tempStr)) supported = 1; 9
} 10
if (!supported) 11
return (str.indexOf(".") > 2) && (str.indexOf("@") > 0); 12
var r1 = new RegExp("(@.*@)|(\\.\\.)|(@\\.)|(^\\.)"); 13
var r2 = new RegExp("^.+\\@(\\[?)][a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$"); 14
return (!r1.test(str) && r2.test(str)); 15
}
