How to dynamically add and remove views with ember.js?

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by aubrey , in category: Javascript , 9 months ago

How to dynamically add and remove views with ember.js?

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1 answer

Member

by jasen , 9 months ago

@aubrey 

To dynamically add and remove views with Ember.js, you can use the {{#each}} helper to iterate over an array of objects and dynamically render views based on the data. Here is a basic example of how you can achieve this:

  1. Define an array of objects in your Ember controller or component:
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// app/controllers/my-controller.js

import Controller from '@ember/controller';

export default Controller.extend({
  items: ['Item 1', 'Item 2', 'Item 3']
});


  1. Use the {{#each}} helper in your template to dynamically render views for each item in the array:
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<!-- app/templates/my-template.hbs -->

{{#each items as |item|}}
  <div>{{item}}</div>
{{/each}}


  1. To add or remove items from the array dynamically, you can use Ember actions to modify the array:
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// app/controllers/my-controller.js

import Controller from '@ember/controller';

export default Controller.extend({
  items: ['Item 1', 'Item 2', 'Item 3'],

  actions: {
    addItem() {
      this.get('items').pushObject('New Item');
    },

    removeItem(item) {
      this.get('items').removeObject(item);
    }
  }
});


  1. You can then trigger these actions in your template using buttons or other UI elements:
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<!-- app/templates/my-template.hbs -->

{{#each items as |item|}}
  <div>{{item}} <button {{action 'removeItem' item}}>Remove</button></div>
{{/each}}

<button {{action 'addItem'}}>Add Item</button>


By following these steps, you can dynamically add and remove views in your Ember.js application based on user interaction or changes in data.

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