jQuery Regular Expression Real Time Form Validation Example

Today, We want to share with you jQuery Regular Expression Real Time Form Validation Example.In this post we will show you Jquery Validation with Regular Expressions, hear for password validation in jquery using regular expression we will give you demo and example for implement.In this post, we will learn about Real Time Form Validation using Regular Expressions in jQuery with an example.

jQuery Regular Expression Real Time Form Validation Example

There are the Following The simple About jQuery Regular Expression Real Time Form Validation Example Full Information With Example and source code.

As I will cover this Post with live Working example to develop jquery regular expression validation for special characters, so the some major files and Directory structures for this example is following below.

  • Email
  • URL
  • Username
  • Password
  • Strong Password
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Email validation in jquery using regular expression

Email Checking using Regular Expression

Regular Expression with jQuery Validation

function checkLiveEmail(email)
{
    //jQuery Regular Expression Real Time Form Validation Example
    var liveStrongPtrn = new RegExp(/^(("[\w-\s]+")|([\w-]+(?:\.[\w-]+)*)|("[\w-\s]+")([\w-]+(?:\.[\w-]+)*))(@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$)|(@\[?((25[0-5]\.|2[0-4][0-9]\.|1[0-9]{2}\.|[0-9]{1,2}\.))((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\.){2}(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\]?$)/i);
    if(liveStrongPtrn.test(email)){
        return true;
    } else {
        return false;
    }
}

simple JavaScript regular expression for email validation
var liveStrongPtrn = /^[a-zA-Z0-9._-][email protected][a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/;

Output – Results
admin.email.com = Error
[email protected] = Ok

URL validation in jquery using regular expression

URL Check using Regular Expression

http or https with URL

function checkUrl(url)
{
    //regular url expression for URL
    var liveStrongPtrn = /^(http|https)?:\/\/[a-zA-Z0-9-\.]+\.[a-z]{2,4}/;
 
    if(liveStrongPtrn.test(url)){
        return true;
    } else {
        return false;
    }
}

Output – Results
www.pakainfo.com = Error
https://www.pakainfo.com = Ok
http://www.pakainfo.com = Ok

Username validation in jquery using regular expression

Username Check using Regular Expression

accept 5-15 characters without any symbol or special characters

function checkLiveFirstname(username){
    var liveStrongPtrn = /^[a-z0-9_-]{5,15}$/;
    if(liveStrongPtrn.test(username)){
        return true;
    }else{
        return false;
    }
}

Output – Results
Result:
jaydeep.gondaliya = Error
jaydeep123 = Ok

password validation in jquery using regular expression

Password using Regular Expression

accept 6-18 lowercase, uppercase, characters, numbers

function checkPassword(password){
    var liveStrongPtrn = /^[a-zA-Z0-9_-]{6,18}$/;
    if(liveStrongPtrn.test(password)){
        return true;
    }else{
        return false;
    }
}

Output – Results
Result:
JdPaka = Ok
[email protected] = Error

Strong Password using Regular Expression

  • Must be at least 8 characters
  • At least 1 number, 1 lowercase, 1 uppercase letter
  • At least 1 special character from @#$%&
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var liveStrongPtrn = /^.*(?=.{8,})(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[@#$%&]).*$/;

Output – Results
Result:
[email protected] = Ok
[email protected] = Error

jQuery Regular Expression Real Time Form Validation Example – Outout

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