The click function is a member of an object within an emit event

I stumbled upon the code snippet below, which triggers the notification-alert event and passes an object as a parameter.

       this.$root.$emit('notification-alert', {
          text,
          type: 'warning',
          click: () => this.unselect(file),
        });

One thing that puzzles me is the line

click: () => this.unselect(file)

  • How can a click function be assigned as a property of an object?
  • What does this mean and how can we utilize this function later on?

Answer №1

click is a function that can be invoked as a callback within the event object when listening for a specific event:

this.$root.$on('notification-alert', e => {
   // Invokes the click function within the context where it was defined
   e.click();
});

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