Ember.js Ember.Templates.helpers concat() Method

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 concat() Method is used to concatenate the given arguments into a string.

Syntax:

{{ some-component StrArg=(concat arg1 arg2... ) }}

Parameters: 

• StrArg: It is the string that holds the concatenated argument. 
• arg1: It is the first argument. 
• arg2: It is the second argument. 

Steps to Install and Run Ember.js:

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 server

Example 1: Type the following code to generate the route for this example:

ember generate route concat1

app/routes/concat1.js

Javascript

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

export default class PartyRoute extends Route {
    person = [
        'Aman',
        'Arabh',
        'Sonu',
        'Saurabh',
        'Satyam',
    ];
    item;
    idx;
    len;
    model() {
        return this.person;
    }
    setupController(controller, model) {
        super.setupController(controller, model);
        controller.set('person', this.person);
        controller.set('item', this.item);
        controller.set('idx', this.idx);
        controller.set('len', this.len);
    }
}

app/component/compact.hbs

HTML

{{@greet}} to GeeksforGeeks site<br/>

app/templates/concat1.hbs

HTML

{{#each @model as |temp|}}
    {{compact greet=(concat "Welcome " temp)}}
{{/each}}

Output:

Ember.js Ember.Templates.helpers concat() Method

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

ember generate route concat2

app/routes/concat2.js

Javascript

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

export default class WebsitesRoute extends Route {
    student = [
        {
            FName: 'Arbha ',
            LName: 'Singh',

        },
        {
            FName: 'Sam ',
            LName: 'Snehil',
        },
        {
            FName: 'Pokhu ',
            LName: 'Agrawal',
        },
        {
            FName: 'Yogi ',
            LName: 'Sahu',
        },
    ];
    temp;
    model() {
        return this.student;
    }
    setupController(controller, model) {
        super.setupController(controller, model);
        controller.set('student', this.student);
        controller.set('temp', this.temp);
        controller.set('temp2', this.temp2);
    }
}

app/component/compact2.hbs

HTML

<li>{{@name}}</li>

app/templates/concat2.hbs

HTML

<h1>List of Students : </h1>
{{#each this.student as |stu| }}
    {{compact2 name=(concat stu.FName stu.LName)}}
{{/each}}

Output:

Ember.js Ember.Templates.helpers concat() Method

Reference: https://api.emberjs.com/ember/4.4/classes/Ember.Templates.helpers/methods/concat?anchor=concat