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Quiz

Test your knowledge of cross-browser scripting in JavaScript by answering the following questions.

Questions

1:Which of the following navigator object properties is the same in both Netscape and IE?
  1. navigator.appCodeName

  2. navigator.appName

  3. navigator.appVersion

A1: a. The navigator.appCodeName property is the same ("Mozilla") in the latest Netscape and Microsoft browsers.
2:Which of the following is something you can't do with JavaScript?
  1. Send users of Netscape to a different page.

  2. Send users of IE to a different page.

  3. Send users of non-JavaScript browsers to a different page.

A2: c. You can't use JavaScript to send users of non-JavaScript browsers to a different page because the script won't be executed at all.
3:What does the <noscript> tag do?
  1. Encloses text to be displayed by non-JavaScript browsers.

  2. Prevents scripts on the page from executing.

  3. Describes certain low-budget movies.

A3: a. The <noscript> tag encloses text to be displayed by non-JavaScript browsers.


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