Ember.js Service incrementProperty() Method
Last Updated :
26 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 incrementProperty() method is used to set a property's value to its current value plus a certain amount.
Syntax:
incrementProperty(key,increment)
Parameters:
- key: The name of the property to decrement.
- increment: The amount to reduce.
Returns: The new incremented value.
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 students
app/controllers/students.js
JavaScript
import Ember from 'ember';
export default Ember.Controller.extend({
name: 'Alix Mainston',
gender: 'F',
class: 9,
grade: 'B',
pocket_money: 9643,
actions: {
getName() {
let n = this.get('name');
alert(n);
},
getOtherDetails() {
let res = this.getProperties(
['gender', 'class', 'grade']);
console.log(res);
let str = `${res.gender},
${res.class} and ${res.grade}`;
alert(str);
},
increasePocketMoney() {
this.incrementProperty('pocket_money', 1000);
},
decreasePocketMoney() {
this.decrementProperty('pocket_money', 1000);
},
},
});
app/template/students.hbs
HTML
{{page-title "Students"}}
<h1>Details:</h1>
<div>Name: {{this.name}}</div>
<div>Gender: {{this.gender}}</div>
<div>Class: {{this.class}}</div>
<div>Grade: {{this.grade}}</div>
<div>Pocket Money: {{this.pocket_money}}</div>
<br /><br />
<input type="button" id="get-name"
value="Get Name" {{action "getName"}} />
<br /><br />
<input
type="button"
id="get-other-details"
value="Get Other Details"
{{action "getOtherDetails"}}
/>
<br /><br />
<input
type="button"
id="increase-pocket-money"
value="Increase Pocket Money"
{{action "increasePocketMoney"}}
/>
<br /><br />
<input
type="button"
id="decrease-pocket-money"
value="Decrease Pocket Money"
{{action "decreasePocketMoney"}}
/>
{{outlet}}
Output:
Example 2: Type the following code to generate the route for this example:
ember generate route details
app/controllers/details.js
JavaScript
import Ember from 'ember';
import { any, slice, reverseObjects, rejectBy } from '@ember/array';
export default Ember.Controller.extend({
name: 'Anubhav',
mobile: '1298119967',
age: 20,
salary: 10000,
city: 'Patna',
country: 'India',
gender: 'M',
zipCode: '800020',
actions: {
getName() {
let n = this.get('name');
alert(n);
},
getMobile() {
let res = this.getProperties(['mobile']);
console.log(res);
alert(res.mobile);
},
increaseSalary() {
this.incrementProperty('salary', 1000);
},
decreaseSalary() {
this.decrementProperty('salary', 1000);
},
},
});
app/template/details.hbs
HTML
{{page-title "Details"}}
<div>{{this.name}}</div>
<div>{{this.age}}</div>
<div>{{this.salary}}</div>
<div>{{this.zipCode}}</div>
<br /><br />
<input type="button" id="get-name"
value="Get Name" {{action "getName"}} />
<br /><br />
<input
type="button"
id="get-mobile"
value="Get Mobile"
{{action "getMobile"}}
/>
<br /><br />
<input
type="button"
id="increase-salary"
value="Increase Salary"
{{action "increaseSalary"}}
/>
<br /><br />
<input
type="button"
id="decrease-salary"
value="Decrease Salary"
{{action "decreaseSalary"}}
/>
<br /><br />
{{outlet}}
Output:
Reference: https://api.emberjs.com/ember/4.7/classes/Service/methods/