Ember.js EmberArray getEach() Method

Last Updated : 22 Dec, 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 getEach() method is used to get the value of named attribute of all item in the enumeration.

Syntax:

getEach( key )

Parameters:

key: It is the name of the property whose value we want.

Return Value: mapped 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 getEach1

app/routes/getEach1.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', 
        }, 
    ]; 
    city; 
    code; 
    model() { 
        return this.details; 
    } 
    setupController(controller, model) { 
        super.setupController(controller, model); 
        controller.set('details', this.details); 
        controller.set('city', this.city); 
        controller.set('code', this.code); 
    } 
}

app/controllers/getEach1.js

import Ember from 'ember'; 
import { every } from '@ember/array'; 
  
export default Ember.Controller.extend({ 
    actions: { 
        allCity() { 
            let ans = this.details.getEach('city'); 
            alert(ans.join('\n')); 
        }, 
        allNames() { 
            let ans = this.details.getEach('name'); 
            alert(ans.join('\n')); 
        }, 
        allMobile() { 
            let ans = this.details.getEach('mobile'); 
            alert(ans.join('\n')); 
        }, 
        allZip() { 
            let ans = this.details.getEach('zipCode'); 
            alert(ans.join('\n')); 
        }, 
    }, 
});

app/templates/getEach1.hbs

{{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> 
    <input type="button" id="get-name" 
        value="All Names" {{action "allNames"}} /> 
</div> 
<br /> 
<input 
    type="button"
      id="get-Mobile"
      value="All Mobile Number"
      {{action "allMobile"}} 
/> 
<br /><br /> 
<input type="button" id="get-city" 
    value="All City" {{action "allCity"}} /> 
<br /><br /> 
<input type="button" id="get-zip" 
    value="All Zip code" {{action "allZip"}} /> 
{{outlet}}

Output: Visit localhost:4200/getEach1 to view the output

Ember.js EmberArray getEach method

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

ember generate route getEach2

app/routes/getEach2.js

import Route from '@ember/routing/route'; 
  
export default class StudentsRoute extends Route { 
    students = [ 
        { 
            name: 'Aakash', 
            gender: 'M', 
            subject: 'Math', 
            grade: 'A', 
        }, 
        { 
            name: 'Sita', 
            gender: 'F', 
            subject: 'Arts', 
            grade: 'A', 
        }, 
        { 
            name: 'Ram', 
            gender: 'M', 
            subject: 'Commerce', 
            grade: 'A', 
        }, 
        { 
            name: 'Esnoor', 
            gender: 'M', 
            subject: 'Math', 
            grade: 'C', 
        }, 
        { 
            name: 'Isha', 
            gender: 'F', 
            subject: 'Biology', 
            grade: 'B', 
        }, 
        { 
            name: 'Lolu', 
            gender: 'M', 
            subject: 'Commerce', 
            grade: 'A', 
        }, 
        { 
            name: 'Lucky', 
            gender: 'M', 
            subject: 'Biology', 
            grade: 'F', 
        }, 
        { 
            name: 'Balit', 
            gender: 'M', 
            subject: 'Math', 
            grade: 'F', 
        }, 
        { 
            name: 'Hillier Buchanan', 
            gender: 'M', 
            subject: 'Arts', 
            grade: 'A', 
        }, 
        { 
            name: 'Aman', 
            gender: 'M', 
            subject: 'Arts', 
            grade: 'B', 
        }, 
        { 
            name: 'Anuj', 
            gender: 'M', 
            subject: 'Math', 
            grade: 'F', 
        }, 
        { 
            name: 'Satyam', 
            gender: 'M', 
            subject: 'Math', 
            grade: 'F', 
        }, 
        { 
            name: 'Aayush', 
            gender: 'M', 
            subject: 'Math', 
            grade: 'C', 
        }, 
    ]; 
    temp2; 
    model() { 
        return this.students; 
    } 
    setupController(controller, model) { 
        super.setupController(controller, model); 
        controller.set('students', this.students); 
        controller.set('temp2', this.temp2); 
    } 
}

app/controllers/getEach2.js

import Ember from 'ember'; 
  
export default Ember.Controller.extend({ 
    actions: { 
        allSubject() { 
            let temp = new Set(this.students.getEach 
                ('subject')); 
            alert([...temp].join('\n')); 
        }, 
        allName() { 
            let temp = this.students.getEach 
                ('name').join('\n'); 
            alert(temp); 
        }, 
        allClass() { 
            let temp = this.students.filterBy('class', 
                JSON.parse(this.temp2)); 
            let ans = ''; 
            for (let i = 0; i < temp.length; i++) 
                ans += temp[i].name + '\n'; 
            if (temp.length) { 
                alert(`Students from class ${this.temp2} 
                    are : \n${ans}`); 
            } else { 
                alert(`No student are from  
                    class ${this.temp2}`); 
            } 
        }, 
    }, 
});

app/templates/getEach2.hbs

{{page-title "Students"}} 
<h3>Students of Class 12: </h3> 
<br /><br /> 
<table> 
    <tr> 
        <th>Name</th> 
        <th>Subject</th> 
        <th>Gender</th> 
        <th>Grade</th> 
      </tr> 
          {{#each @model as |student|}} 
    <tr> 
        <td>{{student.name}}</td> 
          <td>{{student.subject}}</td> 
          <td>{{student.gender}}</td> 
          <td>{{student.grade}}</td> 
    </tr> 
          {{/each}} 
</table> 
<br /> 
<input 
    type="button"
      id="all-pass"
      value="Student's Name"
      {{action "allName"}} 
/> 
<br /><br /> 
<input 
    type="button"
      id="all-Subject"
      value="All Subject"
      {{action "allSubject"}} 
/> 
{{outlet}}