Ember.js ArrayProxy init() Method
Last Updated :
17 Feb, 2023
Ember.js is an open-source JavaScript framework used for developing large client-side web applications which are 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 init() method is called when objects are instantiated.
Syntax:
init(){
// method algorithm
};
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
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 insertAt1
app/routes/init1.js
import Route from '@ember/routing/route';
export default class FruitsRoute extends Route {
fruits = [
{
'name': 'Lady Finger',
'isFruit': false,
'color': 'green',
'quant': 2,
},
{
'name': 'Brinjal',
'isFruit': false,
'color': 'purple',
'quant': 2,
},
{
'name': 'Apple',
'isFruit': true,
'color': 'red',
'quant': 5,
},
{
'name': 'Grapes',
'isFruit': true,
'color': 'green',
'quant': 4,
},
{
'name': 'Mango',
'isFruit': true,
'color': 'yellow',
'quant': 3,
},
{
'name': 'Watermelon',
'isFruit': true,
'color': 'red',
'quant': 2,
},
{
'name': 'Orange',
'isFruit': true,
'color': 'orange',
'quant': 2,
}
];
item2;
item3;
init() {
this._super(...arguments);
alert("this is initalier");
}
model() {
return this.fruits;
}
setupController(controller, model) {
super.setupController(controller, model);
controller.set('fruits', this.fruits);
controller.set('item1', this.item1);
controller.set('item2', this.item2);
controller.set('item3', this.item3);
}
}
import Ember from "ember";
export default Ember.Controller.extend({
age: 55,
actions: {
print_Color() {
let temp = '';
let foo = this.fruits.getEach('name');
let too = this.fruits.getEach('color');
for (let i = 0; i < foo.length; i++)
temp += foo[i] + '\n';
alert(temp ? temp : 'No item in list')
},
remove() {
this.fruits.clear();
},
},
});
{{page-title "Init"}}
<h3>Here is a list of eatables: </h3>
<table>
<tr>
<th>Name</th>
<th>Fruit</th>
<th>Color</th>
<th>Quantity</th>
</tr>
{{#each @model as |detail|}}
<tr>
<td>{{detail.name}}</td>
<td>{{detail.isFruit}}</td>
<td>{{detail.color}}</td>
<td>{{detail.quant}}</td>
</tr>
{{/each}}
</table>
<br /><br />
<div>
<input
type="button"
id="addFruit"
value="Find All the Colors of Fruit"
{{action "print_Color"}}
/>
</div>
<br />
<div>
<input type="button" id="removeFruit"
value="Clear" {{action "remove"}} />
</div>
{{outlet}}
Output: Visit localhost:4200/init1 to view the output
Ember.js ArrayProxy init method
Example 2: Type the following code to generate the route for this example:
ember generate route init2
app/routes/init2.js
import Route from '@ember/routing/route';
export default class FruitsRoute extends Route {
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'
}
];
item2;
item3;
model() {
return this.fruits;
}
setupController(controller,model) {
super.setupController(controller, model);
controller.set('fruits', this.fruits);
controller.set('item1', this.item1);
controller.set('item2', this.item2);
controller.set('item3', this.item3);
}
}
import Ember from "ember";
import { addObject, isAny, isEvery } from "@ember/array";
import EmberObject from '@ember/object';
const Fruit = EmberObject.extend({
init() {
alert(`Name is ${this.get('name')}`);
}
});
export default Ember.Controller.extend({
actions: {
print_Color() {
let temp = '';
this.fruits.forEach((item) => temp += `${item.name} is
${item.color} color` + '\n');
alert(temp ? temp : 'No item in list')
},
remove() {
this.fruits.clear();
},
insertItem(data, data1, data2) {
let temp = Fruit.create({
name: data,
isFruit: data1,
color: data2
});
this.fruits.addObject(temp);
}
},
});
{{page-title "Init"}}
<h3>Here is a list of eatables: </h3>
<table>
<tr>
<th>Name</th>
<th>Fruit</th>
<th>Color</th>
</tr>
{{#each @model as |detail|}}
<tr>
<td>{{detail.name}}</td>
<td>{{detail.isFruit}}</td>
<td>{{detail.color}}</td>
</tr>
{{/each}}
</table>
<br /><br />
<div>
<input
type="button"
id="addFruit"
value="Find All the Colors of Fruit"
{{action "print_Color"}}
/>
</div>
<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>
{{outlet}}
Output: Visit localhost:4200/init2 to view the output
Ember.js ArrayProxy init method
Reference: https://api.emberjs.com/ember/4.6/classes/ArrayProxy/methods/invoke?anchor=init