jqueryangularjsng-pattern

Update the Ng-Pattern using Jquery

Can someone help me how to update the Ng-Pattern using Jquery

I have gone through below question but didn't help me(Most of the Question are related to updating to dynamic values using Angular JS)

  1. Question 1
  2. Question 2
  3. Question 3

HTML 

<div class="col-md-1" style="width: 50px;" id="hourmain">
    <span ng-show="addItem.Hour.$error.pattern">The number must be between 0-4</span>
    <input class="form-control" type="text" name="Hour" ng-model="form.Hour" placeholder="Hour" required="required" ng-pattern="/^[0-4]+(\.[5]{1})?$/" step="0.5" min="0" max="3" maxlength="3" id="hour">
</div>

Now using Jquery How Can I update the ng-pattern value to ng-pattern="/^[0-9]+(\.[5]{1})?$/"

Solution

  • In jQuery, you can grab the specific element using:

    var input = $('input[name="Hour"]');

    and then set the value of the ng-pattern attribute, using:

    input.attr('ng-pattern', '/^[0-9]+(\.[5]{1})?$/');

    Working Example:

    $(document).ready(function(){

var input = $('input[name="Hour"]');
input.attr('ng-pattern', '/^[0-9]+(\.[5]{1})?$/');

console.log('input ng-pattern is now: ' + input.attr('ng-pattern'));

});
    <div class="col-md-1" style="width: 50px;" id="hourmain">
<span ng-show="addItem.Hour.$error.pattern">The number must be between 0-4</span>
<input class="form-control" type="text" name="Hour" ng-model="form.Hour" placeholder="Hour" required="required" ng-pattern="/^[0-4]+(\.[5]{1})?$/" step="0.5" min="0" max="3" maxlength="3" id="hour" />
</div>

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

    Alternatively, in vanilla javascript, you can grab the specific element using:

    var input = document.querySelector('input[name="Hour"]');

    and then set the value of the ng-pattern attribute, using:

    input.setAttribute('ng-pattern', '/^[0-9]+(\.[5]{1})?$/');

    Working Example:

    var input = document.querySelector('input[name="Hour"]');
input.setAttribute('ng-pattern', '/^[0-9]+(\.[5]{1})?$/');

console.log('input ng-pattern is now: ' + input.getAttribute('ng-pattern'));
    <div class="col-md-1" style="width: 50px;" id="hourmain">
<span ng-show="addItem.Hour.$error.pattern">The number must be between 0-4</span>
<input class="form-control" type="text" name="Hour" ng-model="form.Hour" placeholder="Hour" required="required" ng-pattern="/^[0-4]+(\.[5]{1})?$/" step="0.5" min="0" max="3" maxlength="3" id="hour" />
</div>