Ember.js EmberArray includes() Method
Last Updated :
28 Nov, 2022
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 include() method is used to check if passed object is present inside array.
Syntax:
include( object, startAt )
Parameters:
- object: It is the object which we search in array.
- startAt: It is the optional starting index to search.
Return Value: True if object found in array.
Installation Steps:
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 include1
app/routes/include1.js
import Route from '@ember/routing/route';
import { classify, w } from '@ember/string';
export default class RichestPeopleRoute extends Route {
items = [
'Lady Finger',
undefined,
'Tomato',
undefined,
'Apple',
'Potato',
null];
someMoreDetails = [
'Mango',
'Banana',
'Cabbage',
'Orange',
];
temp;
model() {
return this.items;
}
setupController(controller, model) {
super.setupController(controller, model);
controller.set('items', this.items);
controller.set('someMoreDetails',
this.someMoreDetails);
controller.set('item2', this.item2);
controller.set('temp', this.temp);
}
}
import Ember from 'ember';
import { compact } from '@ember/array';
export default Ember.Controller.extend({
actions: {
checkItem(data) {
let ans = this.items.includes(data);
alert(`${ans ? 'List contains item ' :
'List does not contains '}`);
},
pushMoreDetails() {
this.items.pushObjects(this.someMoreDetails);
}
},
});
{{page-title "EmberArray include"}}
<table style=" border-spacing : 30px">
<h2>Array with undefined and null</h2>
<ul>
{{#each @model as |i|}}
{{#if i}}
<li>{{i}}</li>
{{else}}
<li><b>undefined/null</b></li>
{{/if}}
{{/each}}
</ul>
</table>
{{#if this.flag}}
<h2>Array with undefined and null</h2>
<table>
<ul>
{{#each @model as |i|}}
{{#if i}}
<li>{{i}}</li>
{{else}}
<li><b>undefined/null</b></li>
{{/if}}
{{/each}}
</ul>
</table>
{{/if}}
<br /><br />
<div>
<label>Enter Item Name : </label>
{{input value=this.temp}}
</div>
<input
type="button"
id="all-Fruits"
value="Check In list"
{{action "checkItem" this.temp}}
/>
<br /><br />
<input
type="button"
id="push-details"
value="Add More Details"
{{action "pushMoreDetails"}}
/>
{{outlet}}
Output: Visit localhost:4200/include1 to view the output
Ember.js EmberArray include method
Example 2: Type the following code to generate the route for this example:
ember generate route include2
app/routes/include2.js
import Route from '@ember/routing/route';
export default class WebsitesRoute extends Route {
food = [
{
food: 'apple',
isFruit: true,
Bucket: '1',
},
{
food: 'Potato',
isFruit: false,
Bucket: '2',
},
{
food: 'Banana',
isFruit: true,
Bucket: '1',
},
{
food: 'Burgur',
isFruit: false,
Bucket: '2',
},
{
food: 'Orange',
isFruit: true,
Bucket: '1',
},
{
food: 'sandwitch',
isFruit: false,
Bucket: '2',
},
{
food: 'bean',
isFruit: false,
Bucket: '2',
},
];
temp;
model() {
return this.food;
}
setupController(controller, model) {
super.setupController(controller, model);
controller.set('food', this.food);
controller.set('temp', this.temp);
controller.set('temp2', this.temp2);
}
}
import Ember from 'ember';
export default Ember.Controller.extend({
actions: {
Selct1(data1) {
let temp = this.food.filterBy('Bucket', '1');
let temp1 = temp.getEach('food')
let ans = temp1.includes(data1);
alert(`${ans ? 'it Contains' :
"It does not contains"}`);
},
Selct2(data1) {
let temp = this.food.filterBy('Bucket', '2');
let temp1 = temp.getEach('food')
let ans = temp1.includes(data1);
alert(`${ans ? 'it Contains' :
"It does not contains"}`);
},
nonFruit() {
let temp = this.food.filterBy('isFruit', false);
let ans = '';
for (let i = 0; i < temp.length; i++)
ans += temp[i].food + '\n';
alert(ans);
},
},
});
{{page-title "Includes"}}
<h3>Websites</h3>
<br /><br />
<table>
<tr>
<th> Food Name </th>
<th>Bucket </th>
<th>Fruit </th>
</tr>
{{#each @model as |website|}}
<tr>
<td>{{website.food}}</td>
<td>{{website.Bucket}}</td>
<td>{{website.isFruit}}</td>
</tr>
{{/each}}
</table>
<br /><br />
<div>
<label>Enter Item Name : </label>
{{input value=this.temp2}}
</div>
<input
type="button"
id="get-item2"
value="Check In Bucket 1"
{{action "Selct1" this.temp2}}
/>
<input
type="button"
id="get-item"
value="Check In Bucket 2"
{{action "Selct2" this.temp2}}
/>
{{outlet}}
Output: Visit localhost:4200/include2 to view the output
Ember.js EmberArray include method
Reference: https://api.emberjs.com/ember/4.6/classes/EmberArray/methods/includes?anchor=includes