What is the best way to choose "this" element in Angular?

Question

What is the best way to choose "this" element in Angular?

Within my template, I have 5 buttons each utilizing the same ng-click function. These buttons essentially function as a tabbed navigation system, where clicking on one button directs the user to that specific tab's content pane. All of these buttons can be duplicated and are enclosed within a template structure. Similarly, the tab panes exist within another template but remain inactive until a user clicks on a button to activate them. This setup involves multiple nested click functions which perform various actions based on the user's interaction.

In jQuery, I could easily select the clicked object using "this" and manipulate it accordingly. However, achieving the same functionality in Angular seems to be more challenging. Currently, when a button is clicked, the action is applied to all buttons simultaneously. While creating separate functions for each button could address this issue, I am seeking a more scalable solution.

To summarize:

Is there a way to replicate the functionality of selecting "this" in Angular?
I prefer a solution that exclusively utilizes Angular without incorporating jQuery.

How can I efficiently manage nested click functions in this scenario?

<nav class="block--menu">
<section class="content--menu" ng-controller="ActiveCtrl">
    <div class="menu" >
        <button  class="menu__item" ng-click="showConfirm()"></button>
        <button  class="menu__item" ng-click="showConfirm()"></button>
        <button  class="menu__item" ng-click="showConfirm()"></button>
        <button  class="menu__item" ng-click="showConfirm()"></button>
        <button  class="menu__item" ng-click="showConfirm()"></button>
    </div>
</section>

javascript angularjs this

Answer 1

Answer №1

To access the jQuery event object in Angular events, you can use $event. For more information, please refer to the documentation. However, if you find yourself passing this object to your controller, it may indicate that you are not following the best practices recommended by Angular.

Here is how you can use it:

<button  class="menu__item" ng-click="showConfirm($event)"></button>

And this is how you handle it in the controller:

$scope.showConfirm = function($event){
    //$event.target should be your link
};

Answer 2

To access the jQuery event object in Angular events, you can use $event. For more information, please refer to the documentation. However, if you find yourself passing this object to your controller, it may indicate that you are not following the best practices recommended by Angular.

Here is how you can use it:

<button  class="menu__item" ng-click="showConfirm($event)"></button>

And this is how you handle it in the controller:

$scope.showConfirm = function($event){
    //$event.target should be your link
};

Answer 3

Answer №2

It's time to shift your mindset away from jQuery and avoid direct manipulation of the DOM. Embrace a more Angular approach where your controller focuses on data manipulation, leaving the view to reflect these changes. When you adopt the Angular way, your code will typically resemble the following:

HTML

<section ng-controller="ActiveCtrl as ctrl">
    <div class="menu" >
        <button ng-repeat="button in ctrl.buttons track by $index"
                ng-click="ctrl.showConfirm(button)"
                ng-class="{'menu__item_active':button.active, 'menu__item':true}"
        >{{button.name}}</button>
    </div>
</section>

JavaScript

angular.module('app',[]).
  controller('ActiveCtrl', ['$window', function($window) {
    this.buttons = [{
      name: 'First'
    }, {
      name: 'Second'
    }, {
      name: 'Third'
    }];
    this.showConfirm = function(button) {
      button.active = !button.active;
      $window.alert(button.name);
    }
  }]);

Plunker

http://plnkr.co/edit/Dg10cXqFxEKgEt7jWQ7Z?p=preview

Answer 4

It's time to shift your mindset away from jQuery and avoid direct manipulation of the DOM. Embrace a more Angular approach where your controller focuses on data manipulation, leaving the view to reflect these changes. When you adopt the Angular way, your code will typically resemble the following:

HTML

<section ng-controller="ActiveCtrl as ctrl">
    <div class="menu" >
        <button ng-repeat="button in ctrl.buttons track by $index"
                ng-click="ctrl.showConfirm(button)"
                ng-class="{'menu__item_active':button.active, 'menu__item':true}"
        >{{button.name}}</button>
    </div>
</section>

JavaScript

angular.module('app',[]).
  controller('ActiveCtrl', ['$window', function($window) {
    this.buttons = [{
      name: 'First'
    }, {
      name: 'Second'
    }, {
      name: 'Third'
    }];
    this.showConfirm = function(button) {
      button.active = !button.active;
      $window.alert(button.name);
    }
  }]);

Plunker

http://plnkr.co/edit/Dg10cXqFxEKgEt7jWQ7Z?p=preview

What is the best way to choose "this" element in Angular?

Answer №1

Answer №2

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