JavaScript MCQ Questions with answers and solutions Page 35

Q. Which was the first browser to support JavaScript ?

(A) Netscape
(B) IE
(C) Mozilla Firefox
(D) Google Chrome

💬 Discuss

✅ Correct Answer: (A) Netscape

Published by Akash Lawaniya ⭐ 9.58K Points at 30-Jun-2022 07:17 pm in JavaScript

Q. The snippet that has to be used to check if “a” is not equal to “null” is

(A) if(a!=null)
(B) if (!a)
(C) if(a!null)
(D) if(a!==null)

💬 Discuss

✅ Correct Answer: (D) if(a!==null)

Published by Akash Lawaniya ⭐ 9.58K Points at 30-Jun-2022 07:19 pm in JavaScript

Q. The statement a===b refers to

(A) Both a and b are equal in value, type and reference address
(B) Both a and b are equal in value
(C) Both a and b are equal in value and type
(D) There is no such statement

💬 Discuss

✅ Correct Answer: (C) Both a and b are equal in value and type

Published by Akash Lawaniya ⭐ 9.58K Points at 30-Jun-2022 07:19 pm in JavaScript

Q. Assume that we have to convert “false” that is a non-string to string. The command that we use is (without invoking the “new” operator)

(A) false.toString()
(B) String(false)
(C) String newvariable=”false”
(D) Both false.toString() and String(false)

💬 Discuss

✅ Correct Answer: (D) Both false.toString() and String(false)

Published by Akash Lawaniya ⭐ 9.58K Points at 30-Jun-2022 07:20 pm in JavaScript

Q. Consider the following snippet code

Code:

var string1 = ”123”;
 var intvalue = 123;
 alert( string1 + intvalue );

(A) 123246
(B) 246
(C) 123123
(D) Exception

💬 Discuss

✅ Correct Answer: (C) 123123

Published by Akash Lawaniya ⭐ 9.58K Points at 30-Jun-2022 07:21 pm in JavaScript

Q. The JavaScript’s syntax calling ( or executing ) a function or method is called

(A) Primary expression
(B) Functional expression
(C) Invocation expression
(D) Property Access Expression

💬 Discuss

✅ Correct Answer: (C) Invocation expression

Published by Akash Lawaniya ⭐ 9.58K Points at 30-Jun-2022 07:21 pm in JavaScript

Q. Cost for Using JavaScript in your HTML is

(A) Its Free !!!
(B) $10 / Year
(C) $15 / Year
(D) $5 / Year

💬 Discuss

✅ Correct Answer: (A) Its Free !!!

Published by Akash Lawaniya ⭐ 9.58K Points at 30-Jun-2022 07:22 pm in JavaScript

Q. JavaScript Code is written inside file having extension

(A) .jvs
(B) .javascript
(C) .js
(D) .jsc

💬 Discuss

✅ Correct Answer: (C) .js

Published by Akash Lawaniya ⭐ 9.58K Points at 30-Jun-2022 07:22 pm in JavaScript

Q. Why JavaScript is called as Lightweight Programming Language ?

(A) because JS is available free of cost
(B) because JS is client side scripting
(C) because we can add programming functionality inside JS
(D) because JS can provide programming functionality inside but up to certain extend.

💬 Discuss

✅ Correct Answer: (D) because JS can provide programming functionality inside but up to certain extend.

Published by Akash Lawaniya ⭐ 9.58K Points at 30-Jun-2022 07:23 pm in JavaScript

Q. JavaScript is also called as

(A) Server Side Scripting Language
(B) Browser Side Scripting Language
(C) Client Side Scripting Language
(D) Both B and C

💬 Discuss

✅ Correct Answer: (D) Both B and C

Published by Akash Lawaniya ⭐ 9.58K Points at 30-Jun-2022 07:23 pm in JavaScript

JavaScript MCQs with answers Page - 35

Q. Which was the first browser to support JavaScript ?

Q. The snippet that has to be used to check if “a” is not equal to “null” is

Q. The statement a===b refers to

Q. Assume that we have to convert “false” that is a non-string to string. The command that we use is (without invoking the “new” operator)

Q. Consider the following snippet code

Q. The JavaScript’s syntax calling ( or executing ) a function or method is called

Q. Cost for Using JavaScript in your HTML is

Q. JavaScript Code is written inside file having extension

Q. Why JavaScript is called as Lightweight Programming Language ?

Q. JavaScript is also called as

Programming Categories

📱 Download Our App