Keyboard Events

JavaScript FAQ | Keyboard & Mouse Events FAQ

• How do I analyze keyboard events in JavaScript?
• Which key did the user press?
• Which character did the user type?
• Are there predefined constants with key code values?
• Are the keydown event key codes standardized across browsers?
• Can I use JavaScript to allow digits only in a text input field?
• How do I detect keyboard events with Ctrl, Alt, and Shift keys?

• How do I add an event handler to an HTML page element?
• How do I remove an event handler from a page element?
• What is event bubbling?
• How do I cancel event bubbling?
• How do I prevent the browser's default action in a JavaScript event handler?
• How do I determine the event's target element?

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