Events in JavaScript
Events are things that happen in the browser: a user clicks a button, moves the mouse, presses a key, submits a form, or the page finishes loading. JavaScript can 'listen' for these events and run code in response.
This is what makes web pages interactive – without events, nothing responds to the user.
Common Event Types
- Mouse events: click, dblclick, mouseover, mouseout, mousemove
- Keyboard events: keydown, keyup, keypress
- Form events: submit, change, input, focus, blur
- Window/page events: load, resize, scroll
- Other: touchstart/touchend for mobile
The Event Object
When an event happens, the browser creates an event object with details: which element, mouse position, pressed key, etc.
Basic Event Examples
Keyboard Events
Form Events
Quick Quiz
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