Enhance the design of a label with AngularJS upon detecting a change in a text input field

Question

Enhance the design of a label with AngularJS upon detecting a change in a text input field

I have been researching how to accomplish this task, but so far I have had no success. As someone who is not very experienced with web development, I wonder if the solution is so basic that no one even bothers to ask about it :(

Let's say we have an HTML text input field paired with a label, like so:

<label for = "stuff">Stuff</label>
<input type = "text" name = "stuffz" id="stuff" value = "hello!">

Now imagine that the value of the text input field changes. Is there a way to use AngularJS to change the style of the label (for instance, turning it green) when this event occurs? I have explored using ng-change and ng-class, but I lack the knowledge on how to effectively implement them in this context.

Any assistance would be greatly appreciated!

html css angularjs

Answer 1

Answer №1

To implement this feature, you can utilize a combination of ngClass and ngChange:

angular.module('example', []);

.awesome {
  color: blue;
}

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>

<div ng-app="example">

<label for="items"
       ng-class="{ 'awesome' : !!changed }">
  Items
</label>
<input type="text"
       id="items"
       ng-model="myData"
       ng-change="changed = true">
  
</div>

Answer 2

To implement this feature, you can utilize a combination of ngClass and ngChange:

angular.module('example', []);

.awesome {
  color: blue;
}

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>

<div ng-app="example">

<label for="items"
       ng-class="{ 'awesome' : !!changed }">
  Items
</label>
<input type="text"
       id="items"
       ng-model="myData"
       ng-change="changed = true">
  
</div>

Enhance the design of a label with AngularJS upon detecting a change in a text input field

Answer №1

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