Ember.js Component setProperties() 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 setProperties() method is used to set the list of properties at once.

Syntax:

setProperties( hash );

Parameters:

• hash: It is the hash of the key and value to set.

Return Value: Object with the passed hash 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 setProperties1

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.get('name')} is in list Now`);
    }
});
export default Ember.Component.extend({

    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'
        })
    ],


 @action
insertItem(data, data1, data2) {
    let temp = Fruit.create({
        name: data,
        isFruit: data1,
        color: data2
    });
    this.fruits.addObject(temp);
},
@action
flip() {
    let temp = this.fruits.reverseObjects();
    this.fruits.setProperties(temp);
},


})

app/components/arr.hbs

HTML

{{page-title "toggleProperty"}}
<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 Furit"
        {{action "insertItem" this.item1 this.item2 this.item3}}
      />
</div>
<br />
<div>
    <input
        type="button"
        id="flip-fruit"
        value="Flip List"
        {{action "flip"}} />
</div>
{{outlet}}

app/templates/setProperties1.hbs

HTML

{{page-title "setProperties"}}
<Arr>
    <h3>Fruit's List :</h3>
</Arr>
{{outlet}}

Output:

setProperties output1

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

ember generate route setProperties2

app/components/arr2.js

Javascript

import Component from '@glimmer/component';
import { tracked } from '@glimmer/tracking';
import EmberObject from '@ember/object';
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(`${this.get('Name')} is Listed`);
    },
    fullName: Ember.computed('firstName', 'lastName', function () {
        return `${this.firstName} ${this.lastName}`;
    }),

    Changed: Ember.observer('fullName', function () {
        console.log(`fullName changed to: ${this.fullName}`);
    }),
});

export default Ember.Component.extend({
    students: [
        EmberObject.create({
            Name: 'Balit',
            skill: 'Python',
            Id: 'stu2',
            gender: true
        }),
        EmberObject.create({
            Name: 'Yashu',
            skill: 'PHP',
            Id: 'stu0',
            gender: false
        }),
        EmberObject.create({
            Name: 'Sam',
            skill: 'R',
            Id: 'stu1',
            gender: true
        }),
        EmberObject.create({
            Name: 'Pokhu',
            skill: 'JavaScript',
            Id: 'stu3',
            gender: true
        }),
        EmberObject.create({
            Name: 'Tanu',
            skill: 'Java',
            Id: 'stu4',
            gender: false
        }),
        EmberObject.create({
            Name: 'Arabh',
            skill: 'c++',
            Id: 'stu5',
            gender: true
        })],
  @tracked
item3: 'Gulshan',
  @tracked
item2: 'Angular',
  @tracked
item1: 'stu6',
  @tracked
item4: true,

  @action
print(data1, data2, data3, data4) {
    let temp = Student.create({
        Name: data1,
        skill: data2,
        Id: data3,
        gender: data4
    });
    this.students.addObject(temp);
},
@action
flip() {
    this.students.setProperties(this.students.reverseObjects())
}
})

app/components/arr2.hbs

HTML

{{page-title "toggleProperty"}}
<h3>{{yield}}</h3>
<table>
    <tr>
        <th>Name</th>
        <th>skill</th>
        <th>Id</th>
        <th>Gender</th>
      </tr>
      {{#each this.students as |detail|}}
        <tr>
              <td>{{detail.Name}}</td>
              <td>{{detail.skill}}</td>
              <td>{{get detail "Id"}}</td>
              <td>{{if detail.gender "Male" "Female"}}</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 />
<div>
    <label>Enter Student Gender: </label>
      {{input value=this.item4}}
</div>
<br />
<input
    type="button"
     id="set-code"
      value="Update Student details"
      {{action "print" this.item3 this.item2 this.item1 this.item4}}
/>
<br />
<br />
<br />
<input
    type="button"
    id="flip-student"
    value="Flip List"
    {{action "flip"}} />

app/templates/setProperties2.hbs

HTML

{{page-title "setProperties"}}
<Arr2>
    List of Students:
</Arr2>

Output:

setProperties output2

Reference: https://api.emberjs.com/ember/4.6/classes/HashLocation/methods/setProperties?anchor=setProperties