CODEWITHSUNDEEP
jqueryregex
Mohan
Mohan

Reputation: 289

How to allow empty field to be submit when field is not mandatory

I have a regular expression for "media_topic" it should allow characters and space and also it should allow empty data because it is not mandatory field. When I submit without entering anything means it should to allow submit but it is happening.

Below is my code,

$(document).ready(function(){
    $.validator.addMethod('media_topic', function(value, element) {
    var regex = new RegExp("^[a-zA-Z][a-zA-Z0-9,_-\\s]*$");
    var key = value;

    if (!regex.test(key)) {
    return false;
    }
    return true;
}, "Please valid media topic.");

Upvotes: 0

Views: 39

Answers (3)

yellie
yellie

Reputation: 46

May be it is better to check first if your value is empty before performing regex.

e.g. if (value == "") {return True;}

Upvotes: 0

Krunal Limbad
Krunal Limbad

Reputation: 1573

try adding

 ignore: ".ignore"

When field is empty add class .ignore to it if not empty then remove that class

Hope this Helps.

Upvotes: 0

Tim Biegeleisen
Tim Biegeleisen

Reputation: 521249

Try using an alternation in your regex which allows for no input:

var regex = new RegExp("^[a-zA-Z][a-zA-Z0-9,_\\s-]*|$");

The basic idea is:

^(some pattern)|$

Demo

Upvotes: 1

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