Test your JavsScript output knowledge

Welcome to the JavsScript Output Quiz! This quiz will test your understanding of JavsScript output. Whether you are preparing for a job interview or simply want to sharpen your skills, this quiz is a great way to challenge yourself.

Instructions

1. Read each question carefully
2. Choose the correct output from the options provided
3. Once you have selected your answer, click the “Submit” button to see if you are correct

Quiz Questions

1. What will be the output of the following code?

  
    console.log(10 + 20 + "30");
  
  

a. 3030

b. 60

c. 30

d. 50

2. What will be the output of the following code?

  
    for(var i = 0; i < 5; i++) {
      setTimeout(function() {
        console.log(i);
      }, 1000);
    }
  
  

a. 0 1 2 3 4

b. 5 5 5 5 5

c. 1 2 3 4 5

d. undefined undefined undefined undefined undefined