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Ember.js NoneLocation getProperties() Method

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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 getProperties() method is used to get the value of multiple properties at once.

Syntax:

getProperties( list );

Parameters:

  •    list: It is the array of key to get.

Return Value: Object.

Steps to Install and Run Ember.js:

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 getProperties1

app/components/arr2.js

Javascript




import Component from '@glimmer/component';
import { tracked } from '@glimmer/tracking';
import { action } from '@ember/object';
import Ember from 'ember';
 
let Student = Ember.Object.extend({
    // these will be supplied by `create`
    Name: null,
    skill: null,
    id: null,
 
    init() {
        alert(`${this.getProperties('Name').Name} is Listed`);
    },
    fullName: Ember.computed('firstName', 'lastName', function () {
        return `${this.firstName} ${this.lastName}`;
    }),
 
    Changed: Ember.observer('fullName', function () {
        console.log(`fullName changed to: ${this.fullName}`);
    }),
});
 
export default Ember.Component.extend({
    students: [{
        Name: 'Balit stark',
        skill: 'Python',
        Id: 'stu2',
    },
    {
        Name: 'Permu scott',
        skill: 'PHP',
        Id: 'stu0',
    },
    {
        Name: 'Sam melo',
        skill: 'R',
        Id: 'stu1',
    },
    {
        Name: 'Pokhu Verma',
        skill: 'JavaScript',
        Id: 'stu3',
    },
    {
        Name: 'Tanu Agrawal',
        skill: 'Java',
        Id: 'stu4',
    },
    {
        Name: 'Arabh Singh',
        skill: 'c++',
        Id: 'stu5',
    }],
  @tracked
item3: 'Gulshan',
  @tracked
item2: 'Angular',
  @tracked
item1: 'stu6',
  @tracked
item4: 'Sam',
 
  @action
print(data1, data2, data3) {
    let temp = Student.create({
        Name: data1,
        skill: data2,
        Id: data3
    });
    this.students.addObject(temp);
},
@action
removeItem(data) {
    this.students.set('[]', this.students.without
        (this.students.findBy('Name', data)));
}
})


app/components/arr2.hbs   

HTML




<h3>{{yield}}</h3>
<table>
    <tr>
        <th>Name</th>
        <th>Id</th>
      </tr>
      {{#each this.students as |detail|}}
        <tr>
              <td>{{detail.Name}}</td>
              <td>{{get detail "Id"}}</td>
           </tr>
      {{/each}}
</table>
<br />
<div>
    <label>Enter Student FirstName: </label>
      {{input value=this.item3}}
</div>
<br />
<div>
    <label>Enter Student LastName: </label>
      {{input value=this.item2}}
</div>
<br />
<div>
    <label>Enter Student Id: </label>
      {{input value=this.item1}}
</div>
<br />
<input
    type="button"
      id="set-code"
      value="Update Student details"
      {{action "print" this.item3 this.item2 this.item1}}
/>
<br />
<br />
{{outlet}}


app/routes/getProperties1.js

HTML




<Arr2>
    List of Students:
</Arr2>


Output:

getProperties output1

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

ember generate route getProperties2

app/components/arr.js

Javascript




import Component from '@glimmer/component';
import Ember from 'ember';
import EmberObject from '@ember/object';
import { action, without, set, get } from '@ember/object';
 
const Fruit = EmberObject.extend({
    init() {
        alert(`${this.getProperties('name').name} is in list Now`);
    }
});
export default Ember.Component.extend({
 
    fruits: [
        {
            'name': 'Lady Finger',
            'isFruit': false,
            'color': 'green'
        },
        {
            'name': 'Brinjal',
            'isFruit': false,
            'color': 'purple'
        },
        {
            'name': 'Apple',
            'isFruit': true,
            'color': 'red'
        },
        {
            'name': 'Grapes',
            'isFruit': true,
            'color': 'green'
        },
        {
            'name': 'Mango',
            'isFruit': true,
            'color': 'yellow'
        },
        {
            'name': 'Watermelon',
            'isFruit': true,
            'color': 'red'
        },
        {
            'name': 'Orange',
            'isFruit': true,
            'color': 'orange'
        }
    ],
   
 
  @action
insertItem(data, data1, data2) {
    let temp = Fruit.create({
        name: data,
        isFruit: data1,
        color: data2
    });
    this.fruits.addObject(temp);
},
@action
removeItem(data) {
    this.fruits.set('[]', this.fruits.without
        (this.fruits.findBy('color', data)));
},
 
 
})


app/components/arr.hbs

HTML




<h3>{{yield}}</h3>
<table>
    <tr>
        <th>Name</th>
        <th>Fruit</th>
        <th>Color</th>
      </tr>
      {{#each this.fruits as |detail|}}
        <tr>
            <td>{{detail.name}}</td>
              <td>{{detail.isFruit}}</td>
              <td>{{detail.color}}</td>
        </tr>
      {{/each}}
</table>
<br /><br />
<div>
    <label>Enter Fruit Name: </label>
      {{input value=this.item1}}
</div><br />
<div>
    <label>Item is Fruit: </label>
      {{input value=this.item2}}
</div><br />
<div>
    <label>Enter Fruit color: </label>
      {{input value=this.item3}}
</div><br />
<div>
    <input
        type="button"
        id="insert-item"
        value="Insert Fruit"
        {{action "insertItem" this.item1 this.item2 this.item3}}
      />
</div>
<br />
{{outlet}}


app/templates/getProperties2.js

HTML




<Arr>
    List of Fruits:
</Arr>


Output:

getProperties output2

Reference: https://api.emberjs.com/ember/4.6/classes/NoneLocation/methods/getProperties?anchor=getProperties



Last Updated : 06 Dec, 2022
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