A quick tutorial on how to create a modal popup with Lightning Component.

What is modal popup?

Modal popup acts like a container for your content that displays on top of the content you are viewing. Imagine content stacked on top of it.

In short, a modal popup is a very handy way of showing content in front of your app.

How to build one in lightning?

  • First create lightning component and add a boolean attribute then default it’s value to false
  • On your controller, toggle the boolean value as you see fit based on events.
    • cancelBtn onclick event sets the displayModal value to true, thus displaying the modal.
    • yesBtn onclick event tied to the button navigates to another URL and sets the displayModal value back to false, thus hiding the modal popup

That’s it, you should have a working modal popup ready to go.

Final code is available here in GitHub

https://github.com/olopsman/lc-modal-popup

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