Ember.js MutableArray setEach() Method

Last Updated : 02 Aug, 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 setEach() method, for each member, sets the value of the named property.

Syntax:

setEach(key,value)

Parameters:

key (string): The key to set.
value (object): The value to set.

Returns: The resultant array.

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 details

app/routes/details.js

import Route from '@ember/routing/route';

export default class DetailsRoute extends Route {
    details = [
        {
            'name': 'Anubhav',
            'mobile': '1298119967',
            'city': 'Patna',
            'country': 'India',
            'gender': 'M',
            'zipCode': '800020'
        },
        {
            'name': 'Sakshi',
            'mobile': '1234567890',
            'city': 'Mumbai',
            'country': 'India',
            'gender': 'F',
            'zipCode': '400001'
        },
        {
            'name': 'Satyam',
            'mobile': '2222222222',
            'city': 'Delhi',
            'country': 'India',
            'gender': 'M',
            'zipCode': '110012'
        },
        {
            'name': 'Shivam',
            'mobile': '1122113322',
            'city': 'Bangalore',
            'country': 'India',
            'gender': 'M',
            'zipCode': '530068'
        },
        {
            'name': 'Ayushi',
            'mobile': '2244668800',
            'city': 'Jaipur',
            'country': 'India',
            'gender': 'F',
            'zipCode': '302001'
        }
    ];
    someMoreDetails = [
        {
            'name': 'Yeshwant',
            'mobile': '1133557799',
            'city': 'Chennai',
            'country': 'India',
            'gender': 'M',
            'zipCode': '600001'
        },
        {
            'name': 'Siddhant',
            'mobile': '9911000000',
            'city': 'Mangalore',
            'country': 'India',
            'gender': 'M',
            'zipCode': '574142'
        },
        {
            'name': 'Khushi',
            'mobile': '8888888888',
            'city': 'Pune',
            'country': 'India',
            'gender': 'F',
            'zipCode': '111045'
        }
    ];
    city;
    code;
    model() {
        return this.details;
    }
    setupController(controller, model) {
        this._super(controller, model);
        controller.set('details', this.details);
        controller.set('someMoreDetails', this.someMoreDetails);
        controller.set('city', this.city);
        controller.set('code', this.code);
    }
}

app/controllers/details.js

import Ember from 'ember';
import { pushObjects, shiftObject, 
    setEach } from '@ember/array';

export default Ember.Controller.extend({
    actions: {
        checkCity(city) {
            alert(`Contains Person from ${city}:
            ${this.details.isAny('city', city)?'Yes':'No'}`);
        },
        checkCountry() {
            alert(`All are 
            ${this.details.isEvery(
                'country', 'India')?'':'not'} Indian`);
        },
        remove(){
            this.details.shiftObject();
        },
        setZipCode(code){
            this.details.setEach('zipCode', code);
        },
        pushMoreDetails(){
            this.details.pushObjects(this.someMoreDetails);
        }
    },
});

app/template/details.js

{{page-title "Details"}}
<h3>List of People: </h3>
<br /><br />
<table>
    <tr>
        <th>Name</th>
        <th>Gender</th>
        <th>Mobile</th>
        <th>City</th>
        <th>Country</th>
        <th>Zip Code</th>
    </tr>
    {{#each @model as |detail|}}
    <tr>
        <td>{{detail.name}}</td>
        <td>{{detail.gender}}</td>
        <td>{{detail.mobile}}</td>
        <td>{{detail.city}}</td>
        <td>{{detail.country}}</td>
        <td>{{detail.zipCode}}</td>
    </tr>
    {{/each}}
</table>

<br /><br />
<div>
    <label>Enter City: </label>
    {{input value=this.city}}
</div>
<div>
    <input type="button" id="check-city" value="Check City"
           {{action 'checkCity' this.city}} />
</div>
<br /><br />
<div>
    <label>Enter Code: </label>
    {{input value=this.code}}
</div>
<div>
    <input type="button" id="set-code" value="Set Zip Code" 
           {{action 'setZipCode' this.code}} />
</div>
<br /><br />
<input type="button" id="remove-detail" value="Remove" 
       {{action 'remove' }} />
<br /><br />
<input type="button" id="push-details" value="Add More Details"
       {{action 'pushMoreDetails' }} />
<br /><br />
<input type="button" id="check-country" value="All Indian?"
       {{action 'checkCountry' }} />
{{outlet}}

Output: Visit localhost:4200/details to view the output

Example 2: Type the following code to generate the route for this example:

ember generate route websites

app/routes/websites.js

import Route from '@ember/routing/route';

export default class WebsitesRoute extends Route {
    websites=[
        {
            'name': 'Wikipedia',
            'link': 'www.wikipedia.com'
        },
        {
            'name': 'Facebook',
            'link': 'www.facebook.com'
        },
        {
            'name': 'Google',
            'link': 'www.google.com'
        },
        {
            'name': 'Twitter',
            'link': 'www.twitter.com'
        }
    ];
    moreWebsites = [
        {
            'name': 'Instagram',
            'link': 'www.instagram.com'
        },
        {
            'name': 'Amazon',
            'link': 'www.amazon.com'
        }
    ]
    model() {
        return this.websites;
    }
    setupController(controller, model) {
        this._super(controller, model);
        controller.set('websites', this.websites);
        controller.set('moreWebsites', this.moreWebsites);
    }
}

app/controllers/websites.js

import Ember from 'ember';
import { pushObjects, setEach } from '@ember/array';

export default Ember.Controller.extend({
    actions: {
        set(){
            this.websites.setEach('name', 'GeeksforGeeks');
            this.websites.setEach('link', 'www.geeksforgeeks.org');
        },
        add(){
            this.websites.pushObjects(this.moreWebsites);
        }
    },
});

app/template/websites.js

{{page-title "Websites"}}
<h3>Websites</h3>
<br /><br />
<table>
    <tr>
        <th>Name</th>
        <th>Website Link</th>
    </tr>
    {{#each @model as |website|}}
    <tr>
        <td>{{website.name}}</td>
        <td>{{website.link}}</td>
    </tr>
    {{/each}}
</table>
<br /><br />
<input type="button" id="add-website" 
        value="More Websites" {{action 'add' }} />
<br /><br />
<input type="button" id="set-website" 
        value="Click Here" {{action 'set' }} />
{{outlet}}

Output: Visit localhost:4200/websites to view the output

Reference: https://api.emberjs.com/ember/4.4/classes/MutableArray/methods

Ember.js MutableArray toArray() Method

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Ember.js MutableArray setEach() Method

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