Some Usefull Validations

usefull-validation.js

//validate string length
function ValidLen(s,min,max){
 if (s.length < min || s.length > max) { return false; }
 return true;
}

// validate email
function ValidEmail(s){
 var check = /^\w+((-\w+)|(\.\w+))*\@\w+((\.|-)\w+)*\.\w+$/;
 if (!check.test(s)) { return false; }
 return true;
}

// validate url
function ValidUrl(s){
 var check = /^http:\/\/([\w-]+\.)+[\w-]+(\/[\w- .\/?%&=]*)?/;
 if (!check.test(s)) { return false; }
 return true;
}

// validate number
function ValidNumber(s){
 var check = /^[0-9]\d*$/;
 if (!check.test(s)) { return false; }
 return true;
}

// validate ip
function ValidIp(s){
 var check = /^(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])(\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])){3}$/;
 if (!check.test(s)) { return false; }
 return true;
}

// validate date
function ValidDate(s){
 var check = /^\d{4}-(0?[1-9]|1[0-2])-(0?[1-9]|[1-2]\d|3[0-1])$/;
 if (!check.test(s)) { return false; }
 return true;
}