Ember.js MutableArray findBy() Method

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 findBy() method is to get the first item with a property matching the passed value.

Syntax:

findBy( key, value );

Property:

• key: It is the name of the property that we want to test.
• value: it is an optional value that wants to test against the key.

Return Value: It returned the returned item if it finds else return ‘undefined’.

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 find-by1