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 sets the property’s key to the passed value. This method is the same as the object.keyName = value.
Syntax:
set( keyName, value );
Parameters:
- keyName: The property name which is to be retrieved.
- value: It is the value to set.
Return: This method returns an object with a passed value.
Steps to Install and Run Ember.js:
Step 1: To run the following examples, you need to have an ember project. 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/components/arr.js
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: [
{
'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) { let temp = this .fruits.find((item) => item.color == data)
this .fruits.set( '[]' , this .fruits.without(temp));
}, }) |
app/components/arr.hbs
< 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 />
< div >
< label >Enter Fruit color: </ label >
{{input value=this.item4}}
</ div >< br />
< div >
< input
type = "button"
id = "remove-item"
value = "Remove Fruit"
{{action "removeItem" this.item4}}
/>
</ div >
{{outlet}} |
app/templates/set1.hbs
< Arr >
< h3 >Fruit's List :</ h3 >
</ Arr >
|
Output:
Example 2: Type the following code to generate the route for this example:
ember generate route set2
app/components/arr2.js
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`
firstName: null ,
lastName: 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: [{
Name: 'Balit' ,
skill: 'Python' ,
Id: 'stu2' ,
},
{
Name: 'Permu' ,
skill: 'PHP' ,
Id: 'stu0' ,
},
{
Name: 'Sam' ,
skill: 'R' ,
Id: 'stu1' ,
},
{
Name: 'Pokhu' ,
skill: 'JavaScript' ,
Id: 'stu3' ,
},
{
Name: 'Tanu' ,
skill: 'Java' ,
Id: 'stu4' ,
},
{
Name: 'Arabh' ,
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 remove(data1) { let temp = this .students.find((item) =>
item.Name == data1)
this .students.set( '[]' , this .students.without(temp));
} }) |
app/components/arr2.hbs
{{yield}} < table >
< tr >
< th >Name</ th >
< th >skill</ th >
< th >Id</ th >
</ tr >
{{#each this.students as |detail|}}
< tr >
< td >{{detail.Name}}</ td >
< td >{{detail.skill}}</ 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 />
< div >
< label >Enter Student Name: </ label >
{{input value=this.item4}}
</ div >
< br />
< input
type = "button"
id = "remove-student"
value = "Remove Student"
{{action "remove" this.item4}}
/> |
app/templates/set2.hbs
< Arr2 >
< h3 >Student's List :</ h3 >
</ Arr2 >
|
Output:
Reference: https://api.emberjs.com/ember/4.6/classes/ObjectProxy/methods/set?anchor=set