Introduction to Helper Functions
Learn about helper functions and their types in Ember.
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Overview
Helper functions are JavaScript functions that can be called from a template. Ember’s template syntax limits what can be expressed to keep the structure of the application clear. If we need to calculate something in JavaScript, we can use a helper function. We can write a custom helper or use the built-in helper that Ember provides.
A helper takes a parameter passed to the function and returns a value. Here’s how we use a helper inside a template:
<p>{{helper arguments}}</p>
Generating helpers
In Ember CLI, we use the following command to generate a helper:
ember g helper