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Which property is used to specify the key type when pressed?

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Which property is used to specify the key type when pressed?

(a) keyCode

(b) keyType

(c) keyName

(d) keyProperty

I have been asked this question in an online quiz.

The query is from Keyboard Events topic in portion Document Object Model and Event Handling in Javascript of JavaScript

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Best answer
Correct option is (a) keyCode

The best explanation: The keyCode property returns the Unicode character code of the key that triggered the onkeypress event, or the Unicode key code of the key that triggered the onkeydown or onkeyup event. The event object associated with these events has a numeric keyCode property that specifies which key was pressed.

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