Ember.js EmberObject set() Method
Last Updated :
28 Apr, 2025
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 set() method is used to set the provided key value to the object.
Syntax:
set( keyName, value );
Parameters:
- keyName: It is the name of the property whose value we want to set.
- value: It is the value of the key which we want to set.
Return Value: The object with the passed key 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 set1
app/routes/set1.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,
quant: 3,
}),
EmberObject.create({
food: 'Potato',
isFruit: false,
quant: 4,
}),
EmberObject.create({
food: 'Banana',
isFruit: true,
quant: 2,
}),
EmberObject.create({
food: 'Burgur',
isFruit: false,
quant: 2,
}),
EmberObject.create({
food: 'Orange',
isFruit: true,
quant: 7,
}),
];
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/set1.js
JavaScript
import Ember from 'ember';
export default Ember.Controller.extend({
value: 0,
actions: {
remove_item(item) {
this.food.set('[]', this.food.without
(this.food.findBy('food', item)));
},
list() {
let ans = '';
this.food.forEach((item) => ans +=
item.get('food') + '\n');
alert(ans)
},
increase() {
this.food.forEach((item) =>
item.incrementProperty('quant'));
},
decrease() {
this.food.forEach((item) =>
item.decrementProperty('quant'));
},
},
});
app/templates/set1.hbs
JavaScript
{{page-title "set"}}
<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.quant}}</td>
<td>{{website.isFruit}}</td>
</tr>
{{/each}}
</table>
<br />
<div>
<label>Enter value: </label>
{{input value=this.item}}
</div>
<input
type="button"
id="R-item"
value="Remove this item"
{{action "remove_item" this.item}}
/>
<br /><br />
<input
type="button"
id="list-items"
value="List All Items"
{{action "list"}} />
<br /><br />
<input
type="button"
id="increase-property"
value="Increase Quantity"
{{action "increase"}}
/>
<br /><br />
<input
type="button"
id="decrease-property"
value="decrease Quantity"
{{action "decrease"}}
/>
{{outlet}}
Output: Visit localhost:4200/set1 to view the output.
Ember.js EmberObject set() Method
Example 2: Type the following code to generate the route for this example:
ember generate route set2
app/routes/set2.js
JavaScript
import Route from '@ember/routing/route';
import EmberObject from '@ember/object';
import { } from '@ember/array';
export default class FruitsRoute extends Route {
students = [
EmberObject.create({ name: 'Rahul',
Class: 11, marks: 75 }),
EmberObject.create({ name: 'Sam',
Class: 12, marks: 59 }),
EmberObject.create({ name: 'David',
Class: 11, marks: 67 }),
EmberObject.create({ name: 'Druv',
Class: 12, marks: 44 }),
EmberObject.create({ name: 'Mahan',
Class: 12, marks: 87 }),
EmberObject.create({ name: 'Ram',
Class: 11, marks: 71 }),
EmberObject.create({ name: 'Dadu',
Class: 12, marks: 58 })
];
model() {
return this.students;
}
setupController(controller, model) {
super.setupController(controller, model);
controller.set('students', this.students);
}
}
app/controllers/set2.js
JavaScript
import Ember from "ember";
import { isAny, isEvery } from "@ember/array";
export default Ember.Controller.extend({
actions: {
increase(data) {
this.students.forEach((item) =>
item.incrementProperty('marks', JSON.parse(data)));
},
decrease(data) {
this.students.forEach((item) =>
item.decrementProperty('marks', JSON.parse(data)));
},
remove(item) {
this.students.set('[]',
this.students.without(this.students.findBy
('name', item)));
},
show_first() {
let ans = this.students.get('firstObject');
alert(ans.name)
},
show_last() {
let ans = this.students.get('lastObject');
alert(ans.name)
},
},
});
app/templates/set2.hbs
JavaScript
{{page-title "set"}}
<h3>Students List: </h3>
<table>
<tr>
<th>Name</th>
<th>Class</th>
<th>Marks</th>
</tr>
{{#each @model as |detail|}}
<tr>
<td>{{detail.name}}</td>
<td>{{detail.Class}}</td>
<td>{{detail.marks}}</td>
</tr>
{{/each}}
</table>
<br />
<div>
<label>Enter value: </label>
{{input value=this.item}}
</div>
<input
type="button"
id="increase-marks"
value="Increase All marks by Value"
{{action "increase" this.item}}
/>
<br /><br />
<div>
<label>Enter value: </label>
{{input value=this.item2}}
</div>
<input
type="button"
id="decrease-marks"
value="decrease All marks by Value"
{{action "decrease" this.item2}}
/>
<br /><br />
<div>
<label>Enter Name: </label>
{{input value=this.item3}}
</div>
<input
type="button"
id="remove-student"
value="Remove Student"
{{action "remove" this.item3}}
/>
<br /><br />
<input
type="button"
id="first-student"
value="Show First Student in list"
{{action "show_first"}}
/>
<br /><br />
<input
type="button"
id="last-student"
value="Show Last Student in list"
{{action "show_last"}}
/>
{{outlet}}
Output: Visit localhost:4200/set2 to view the output.
Ember.js EmberObject set() Method
Reference: https://api.emberjs.com/ember/4.4/classes/EmberObject/methods/get?anchor=set