jQuery kepress detection on left, right arrows and

2019-08-21 07:39发布

I'm trying to use a little jQuery here to detect which keys are being pressed.

I've a lot about trying to use functions to detect ASCII codes and such to see which keys are being pressed, but I'm a little confused.

Also, what's the difference between keyUp, keyDown and keypress?

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祖国的老花朵
2楼-- · 2019-08-21 08:29

keydown:
Fires when the user depresses a key. It repeats while the user keeps the key depressed.

keypress:
Fires when an actual character is being inserted in, for instance, a text input. It repeats while the user keeps the key depressed. Not supported by Safari iPhone.

keyup:
Fires when the user releases a key, after the default action of that key has been performed.

From: http://www.quirksmode.org/dom/events/keys.html

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趁早两清
3楼-- · 2019-08-21 08:33
  1. A key down event is fired when a key is pressed down.
  2. A key press event is fired for every character that is actually typed if a user continues to hold down the key to let a character repeat.
  3. A key up event is fired when the key is released.
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