How do I call a controller helper?

How do I call a controller helper?

1 Answer

1. controller.js doInit:function(component){ helper.method1(component); helper.method2(component); helper.method3(component); }
2. helper.js ({ method1:function(cmp){ // do some stuff }, method2:function(cmp){ // do some stuff }, method3:function(cmp){ // do some stuff } })

How do you call a controller helper in Salesforce?

Using a Helper in a Controller Add a helper argument to a controller function to enable the function to use the helper. Specify (component, event, helper) in the controller. These are standard parameters and you don’t have to access them in the function. This controller code calls an updateItem helper function.

What is client-side controller?

A client-side controller handles events within a component. It’s a JavaScript resource that defines the functions for all of the component’s actions. A client-side controller is a JavaScript object in object-literal notation containing a map of name-value pairs. Each name corresponds to a client-side action.

Can we use helper method in controller rails?

In Rails 5, by using the new instance level helpers method in the controller, we can access helper methods in controllers. This removes some of the drawbacks of including helper modules and is much cleaner solution.

When should you use helpers?

3 Answers. Use helpers if you’re working in a view (template) and you need to build a complex bit of HTML such as a

. Or, if you want to change some presentation data that’s not connected to the database. Use models when you’re working with database objects, and you want to simplify the business logic.

What is a client side controller in JavaScript?

A client-side controller handles events within a component. It’s a JavaScript resource that defines the functions for all of the component’s actions. A client-side controller is a JavaScript object in object-literal notation containing a map of name-value pairs. Each name corresponds to a client-side action.

How to call helper methods in Lightning controller?

Need to call these helper methods in lightning client side controller synchronously. If there’s no code in the helper method to invoke apex controller method ( @auraenabled ), you can call the methods one by one, since they are executed synchronously.

How to include a helper in a controller?

Probably the simplest way is to include your helper module in your controller: class ApplicationController < ActionController::Base include ApplicationHelper In general, if the helper is to be used in (just) controllers, I prefer to declare it as an instance method of class ApplicationController.

How to create a client side controller in Salesforce?

A client-side controller is part of the component bundle. It is auto-wired via the naming convention, componentNameController.js. To create a client-side controller using the Developer Console, click CONTROLLER in the sidebar of the component.