Question

True/False

1. Browser-based validation can replace the need to write custom JavaScript code to validate user input.

2. When you add a new property to an object that has been instantiated from a constructor function, the new property is available to all objects instantiated from the same constructor function.

3. Because objects in the browser object model are actually part of the web browser, you do not need to instantiate them in order to use them in your programs.

4. A run-time error can be caused by a syntax error.

5. Using the console.log() method requires opening a separate browser window.

6. Only initialized variables are displayed in the variables list in browser debugging tools.

7. A programmer can combine techniques to aid in searching for errors.

8. A programmer should not use the W3C Markup Validation Service to validate a web page.

9. When a programmer suspects that code contains logic errors, he or she must analyze each statement on a case-by-case basis.

10. On a touchscreen device, all web page elements respond to mouse events.

11. Opening and closing HTTP connections takes up a significant amount of computer memory and processing time.  

12. The value assigned to the readyState property is updated automatically according to the current state of the HTTP request.   

13. HTTP response messages take the same format as request messages, including the contents of the start line and the headers.   

Answer 1

As the questions are true/false . Here are the questions one by one>>

1.True.

• Explanation:
• They both work in the same fashion. They can replace.

2.False

• Explanation:
• They are different objects.

3.True

• Explanation:
• Our browser does generate the document object model.

4.False

• Explanation:
• a runtime error occurs due to the perform of illegal operations.

5.False

• Explanation:
• We have to open the console window.

6.False

• Explanation:
• The declared variable is also shown.

7.True

• Explanation:
• We can combine multiple tools for error detection.

8.False

• Explanation:
• We should always use proper formatting.

9.True

• Explanation:
• This is a good practice.

10.False

• Explanation:
• No , some events can respond.

11.False

• Explanation:
• Time taken is very less.

12.True

• Explanation:
• They are updated automatically.

13.True

• Explanation:
• They both follow the same structure.

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