Ember.js EmberObject toggleProperty() Method

Ember.js is an open-source JavaScript framework used for developing large client-side web applications which is based on Model-View-Controller (MVC) architecture. Ember.js is one of the most widely used front-end application frameworks. It is made to speed up development and increase productivity. Currently, it is utilized by a large number of websites, including Square, Discourse, Groupon, Linked In, Live Nation, Twitch, and Chipotle.

The toggleProperty() method is used to set the value of the boolean property to the opposite of its current value.

Syntax:

toggleProperty( keyName );

Parameters:

• keyName: It is the name of property to toggle.

Return Value: The new property value.

Step 1: To run the following examples you will need to have an ember project with you. To create one, you will need to install ember-cli first. Write the below code in the terminal:

npm install ember-cli

Step 2: Now you can create the project by typing in the following piece of code:

ember new <project-name> --lang en

To start the server, type:

ember serve

Example 1: Type the following code to generate the route for this example:

ember generate route toggleProperty1

app/routes/toggleProperty1.js

Javascript

import Route from '@ember/routing/route';
import EmberObject from '@ember/object';
import { } from '@ember/array';

export default class FruitsRoute extends Route {
    fruits = [
        EmberObject.create({ name: 'Lady Finger',
            isFruit: false, color: 'green' }),
        EmberObject.create({ name: 'Brinjal',
            isFruit: false, color: 'purple' }),
        EmberObject.create({ name: 'Apple',
            isFruit: true, color: 'red' }),
        EmberObject.create({ name: 'Grapes',
            isFruit: true, color: 'green' }),
        EmberObject.create({ name: 'Mango',
            isFruit: true, color: 'yellow' }),
        EmberObject.create({ name: 'Watermelon',
            isFruit: true, color: 'red' }),
        EmberObject.create({ name: 'Orange',
            isFruit: true, color: 'orange' })
    ];
    fruits2 = [
        EmberObject.create({ name: 'Potato',
            isFruit: false, color: 'brown' }),
        EmberObject.create({ name: 'Tomato',
            isFruit: false, color: 'red' }),
        EmberObject.create({ name: 'Banana',
            isFruit: true, color: 'Yellow' }),
        EmberObject.create({ name: 'Water-melon',
            isFruit: true, color: 'green' }),
        EmberObject.create({ name: 'Papaya',
            isFruit: true, color: 'yellow' }),
    ];
    model() {
        return this.fruits;
    }
    setupController(controller, model) {
        super.setupController(controller, model);
        controller.set('fruits', this.fruits);
        controller.set('fruits2', this.fruits2);
    }
}

app/controllers/toggleProperty1.js

Javascript

import Ember from "ember";
import { isAny, isEvery } from "@ember/array";

export default Ember.Controller.extend({
    actions: {
        print() {
            let ans = '';
            this.fruits.forEach((item) => ans +=
                item.getProperties('name').name + '\n');
            alert(ans);
        },
        Change() {
            let ans = this.fruits.forEach((item, i) =>
                item.setProperties(this.fruits2.at(i)));
        },
        toggle() {
            this.fruits.forEach((item) =>
                item.toggleProperty('isFruit'));
        },
    },
});

app/templates/toggleProperty1.hbs

Javascript

{{page-title "toggleProperty"}}
<h3>Here is a list of eatables: </h3>
<br /><table>
    <tr>
        <th>Name</th>
        <th>isFruit</th>
        <th>color</th>
      </tr>
      {{#each @model as |detail|}}
    <tr>
        <td>{{detail.name}}</td>
          <td>{{detail.isFruit}}</td>
          <td>{{detail.color}}</td>
    </tr>
      {{/each}}
</table>
<br />
<input type="button"
    id="list-item"
    value="List all Items"
    {{action "print"}} />
<br /><br />
<input
    type="button"
      id="change-item"
      value="Change all Item in Bucket"
      {{action "Change"}}
/>
<br /><br />
<input
    type="button"
      id="toggle-isFruits"
      value="Toggle isFruit Properties"
      {{action "toggle"}}
/>
{{outlet}}

Output: Visit localhost:4200/toggleProperty1 to view the output.

Ember.js EmberObject toggleProperty() Method

Example 2: Type the following code to generate the route for this example:

ember generate route toggleProperty2

app/routes/toggleProperty2.js

Javascript

import Route from '@ember/routing/route';
import EmberObject from '@ember/object';

export default class WebsitesRoute extends Route {

    food = [
        EmberObject.create({
            food: 'apple',
            isFruit: true,
            buck: '1',
        }),
        EmberObject.create({
            food: 'Potato',
            isFruit: false,
            buck: '2',
        }),
        EmberObject.create({
            food: 'Banana',
            isFruit: true,
            buck: '1',
        }),
        EmberObject.create({
            food: 'Burgur',
            isFruit: false,
            buck: '2',
        }),
        EmberObject.create({
            food: 'Orange',
            isFruit: true,
            buck: '1',
        }),
    ];

    food2 = [

        EmberObject.create({ food: 'sandwitch',
            isFruit: false, buck: '2', }),
        EmberObject.create({ food: 'bean',
            isFruit: false, buck: '2', }),
        EmberObject.create({ name: 'Banana',
            isFruit: true, buck: 1 }),
        EmberObject.create({ name: 'Water-melon',
            isFruit: true, buck: 2 }),
        EmberObject.create({ name: 'Papaya',
            isFruit: true, buck: 1 }),
        ,
        ,
    ];
    temp;
    model() {
        return this.food;
    }
    setupController(controller, model) {
        super.setupController(controller, model);
        controller.set('food', this.food);
        controller.set('temp', this.temp);
        controller.set('food2', this.food2);
    }
}

app/controllers/toggleProperty2.js

Javascript

import Ember from 'ember';

export default Ember.Controller.extend({
    value: 0,
    actions: {
        List() {
            let ans = '';
            this.food.forEach((item) => ans +=
                item.getProperties('food').food +
                ' is in Bucket ' + item.getProperties
                ('buck').buck + '\n');
            alert(ans);
        },
        Bucket2() {
            this.food.forEach((item, i) =>
                item.setProperties(this.food2.at(i)));
        },

        toggle2() {
            this.food.forEach((item, i) =>
                item.toggleProperty('isFruit'));
        },
    },
});

app/templates/toggleProperty2.hbs

Javascript

{{page-title "toggleProperty"}}
<h3>List of Item in Buckets</h3>
<table>
    <tr>
        <th> Food Name </th>
        <th>Bucket </th>
        <th>Fruit </th>
      </tr>
      {{#each @model as |website|}}
    <tr>
        <td>{{website.food}}</td>
          <td>{{website.buck}}</td>
          <td>{{website.isFruit}}</td>
    </tr>
      {{/each}}
</table>
<br /><br />
<input
    type="button"
      id="increase"
      value="List All items with Bucket number"
      {{action "List"}}
/>
<br /><br />
<input
    type="button"
      id="update-list"
      value="List another Bucket item"
      {{action "Bucket2"}}
/>
<br /><br />
<input
    type="button"
      id="toggle-property"
      value="Toggle Fruit Property"
      {{action "toggle2"}}
/>
{{outlet}}

Output: Visit localhost:4200/toggleProperty2 to view the output.

Ember.js EmberObject toggleProperty() Method

Reference: https://api.emberjs.com/ember/4.4/classes/EmberObject/methods/toggleProperty?anchor=toggleProperty