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Basic Javascript Quiz

Description: Basic Javascript Quiz
Number of Questions: 15
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Tags: javascript
Attempted 0/15 Correct 0 Score 0

Inside which HTML element do we put the JavaScript?


Correct Option: C

What is the correct JavaScript syntax to write "Hello World"?

  1. response.write("Hello World")

  2. document.write("Hello World")

  3. ("Hello World")

  4. echo("Hello World")


Correct Option: B

How do you call a function named "myFunction"?

  1. call function myFunction

  2. myFunction()

  3. call myFunction()


Correct Option: B

How do you write a conditional statement for executing some statements only if "i" is equal to 5?

  1. if i==5 then

  2. if i=5 then

  3. if (i==5)

  4. if i=5


Correct Option: C

How do you write a conditional statement for executing some statements only if "i" is NOT equal to 5?

  1. if (i <> 5)

  2. if (i != 5)

  3. if =! 5 then

  4. if <> 5


Correct Option: B

How many different kind of loops are there in JavaScript?

  1. Two. The "for" loop and the "while" loop

  2. Four. The "for" loop, the "while" loop, the "do...while" loop, and the "loop...until" loop

  3. One. The "for" loop


Correct Option: A

How does a "for" loop start?

  1. for (i = 0; i <= 5)

  2. for (i = 0; i <= 5; i++)

  3. for i = 1 to 5

  4. for (i <= 5; i++)


Correct Option: B

What is the correct way to write a JavaScript array?

  1. var txt = new Array(1:"tim",2:"shaq",3:"kobe")

  2. var txt = new Array="tim","shaq","kobe"

  3. var txt = new Array("tim","shaq","kobe")


Correct Option: C

How do you round the number 8.25, to the nearest whole number?

  1. Math.rnd(8.25)

  2. Math.round(8.25)

  3. round(8.25)

  4. rnd(8.25)


Correct Option: B

How do you find the largest number of 6 and 8?

  1. Math.max(6,8)

  2. top(6,8)

  3. ceil(6,8)

  4. Math.ceil(6,8)


Correct Option: A

You work on a JavaScript project. How do you prompt users with messages and at the same time requesting user inputs?

  1. Alert()

  2. Display()

  3. Prompt()

  4. Confirm()


Correct Option: C

Which of the following is the correct syntax of FOR?

  1. for ( increment; initialize; test)

  2. for ( initialize; test), increment

  3. for ( initialize; test; increment)

  4. for ( test; initalize; increment)


Correct Option: C

In your JavaScript code, how do you find out which character occurs at the 5th position in a string "How are you"?

  1. Substring()

  2. String()

  3. Stringlength()

  4. CharAt()


Correct Option: D

Which of the following do you use for a multi-way branch?

  1. If

  2. Ifthen

  3. Ifelse

  4. switch

  5. for


Correct Option: D

You want to design a form validation mechanism. Using string methods, which of the following are the steps involved ?

  1. Check for the presence of certain characters

  2. Check the position of substrings

  3. Test the length of data

  4. Check the variable type of the strings

  5. Either ABC


Correct Option: E
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