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Quiz

Test your knowledge of event handlers in JavaScript by answering the following questions.

Questions

1:Which of the following is the correct event handler to detect a mouse click on a link?
  1. onMouseUp

  2. onLink

  3. onClick

A1: c. The event handler for a mouse click is onClick.
2:When does the onLoad event handler for the <body> tag execute?
  1. When an image is finished loading.

  2. When the entire page is finished loading.

  3. When the user attempts to load another page.

A2: b. The <body> tag's onLoad handler executes when the page and all its images are finished loading.
3:Which of the following event object properties indicates which key was pressed for an onKeyPress event in Internet Explorer?
  1. event.which

  2. event.keyCode

  3. event.onKeyPress

A3: b. In Internet Explorer, the event.keyCode property stores the character code for each keypress.


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