Modal alert javascript

1. How to trigger modal in JavaScript?
2. What is the difference between alert and modal?

How to trigger modal in JavaScript?

Trigger the Modal Via data-* Attributes

Add data-toggle="modal" and data-target="#modalID" to any element.

What is the difference between alert and modal?

In terms of web design a modal is a box that will disrupt a page by overlaying on top of it and prevent interaction – just like an alert. The difference is that modals need direct interaction in order to be dismissed. They will often display a dialog box with a button that can be clicked to dismiss the box.