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•  JavaScript Events?

By using JavaScript, we have the ability to create dynamic web pages. Events are actions that can be detected by JavaScript.

Every element on a web page has certain events which can trigger JavaScript functions. For example, we can use the onClick event of a button element to indicate that a function will run when a user clicks on the button. We define the events in the HTML tags.

Examples of events:

  • A mouse click
  • A web page or an image loading
  • Mousing over a hot spot on the web page
  • Selecting an input box in an HTML form
  • Submitting an HTML form
  • A keystroke

The following table lists the events recognized by JavaScript:

Note: Events are normally used in combination with functions, and the function will not be executed before the event occurs!