Basic JavaScript Quiz 1

Description: Basic JavaScript Quiz 1
Number of Questions: 10
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Tags: javascript
Attempted 0/10 Correct 0 Score 0

What is the correct JavaScript syntax for opening a new window called "window5" ?

Correct Option: B
  1. window.status = "put your message here"

  2. statusbar = "put your message here"

  3. status("put your message here")

  4. window.status("put your message here")

Correct Option: A

How do you find the client's browser name?

  1. browser.name

  2. navigator.appName

  3. client.navName

Correct Option: B
  1. var myarray = new Array();

  2. var myarray = array new;

  3. var new Array() = myarray;

  4. var new array = myarray;

Correct Option: A

Onclick is equivalent to which two events in sequence

  1. onmouseover and onmousedown

  2. onmousedown and onmouseout

  3. onmousedown and onmouseup

  4. onmouseup and onmouseout

Correct Option: C
  1. A method

  2. A function

  3. An operator

  4. A statement

Correct Option: C

Which property would you use to redirect visitor to another page?

  1. window.location.href

  2. document.href

  3. java.redirect.url

  4. link.redirect.href

Correct Option: A

Which of the following JavaScript statements use arrays?

  1. setTimeout("a["+i+"]",1000)

  2. k = a & i

  3. k = a(i)

Correct Option: A

AI Explanation

To answer this question, you need to understand how arrays are used in JavaScript.

An array is a special type of variable that can store multiple values in a single variable. It is created using square brackets [] and each value is separated by a comma.

Let's go through each option to understand which one uses arrays:

Option A) setTimeout("a["+i+"]",1000) - This option uses an array. The a variable is likely an array, and it is accessing the element at the index i using square brackets.

Option B) k = a & i - This option does not use arrays. It is using the bitwise AND operator (&) to perform a bitwise operation between variables a and i.

Option C) k = a(i) - This option does not use arrays. It is using parentheses () to call a function named a with the parameter i.

The correct answer is option A. This option uses an array to access an element at a specific index.

You are a junior web designer. Your company assigns you to work on a JavaScript project. Which of the following are the advantages of using JavaScript for form validation?

  1. Conservation of client CPU resources

  2. Increased validity of form submission

  3. Conservation of bandwidth

  4. Increase end-user satisfaction

  5. Either BCD

Correct Option: E
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