A Set of JavaScript Multiple-choice Questions Has P4 Answers

This article examines A Set of JavaScript Multiple-choice Questions Has P4 Answers. It presents the main facts, practical implications, and key points in a clearer, easier-to-follow format.

Understanding A Set of JavaScript Multiple-choice Questions Has P4 Answers

• Question 1. When does the Onchange event JavaScript happen?
  • When an object in the form receives focus.
  • Occurs when the value of a field in the form is changed by the user.
  • When an object in form loses focus
  • When you select your mouse on the command button.
• Question 2. How to add a multi-line comment in JavaScript?
  • /* This is a comment on many lines */
  • //This is a comment on many lines//
• Question 3. When does the Onload event JavaScript happen?
  • When starting the program
  • When you select
  • At the end of a program
  • When hovering over
• Question 4. Is JavaScript language case-sensitive?
  • Have
  • Is not
• Question 5. How can I know if the browser is being used at the client?
  • navigator.appName
  • browser.name
  • client.navName
• Question 6. Which of the following statements correctly calls an external script named 'xxx.js'?