Backbone.js trigger Event is used to invoke or callback the function for the given event or a space-delimited list of events. The subsequent arguments will be passed along to the event callbacks in order to trigger it.

Syntax:

object.trigger(event, [*args])

Parameter Values:

• event: It is used to bind an object with an event.
• args: It is used to pass values or arguments to the callback function.

Example: This example describes the trigger event in Backbone.js.

Here, the _.extend() function is used to create a copy of all of the properties of the source objects over the destination object and return the destination object.

Output:

Example: This example describes the Backbone.js trigger Event using the <iframe> tag.

Output:

Reference: https://backbonejs.org/#Events-trigger