Q
What does the following JavaScript code snippet do? Code: let numbers = [1, 2, 3, 4, 5]; for (let i = 0; i < numbers.length; i++) { console.log(numbers[i]); }

Answer & Solution

Answer: Option A
Solution:
The code snippet uses a for loop to iterate through all elements of the array numbers and prints each element to the console. It starts with i being 0 and iterates until i is less than the length of the array (numbers.length). In each iteration, it accesses the element at index i using numbers[i] and logs it to the console. Therefore, the output will be: 1 2 3 4 5
Related Questions on Average

What will be the output of the following JavaScript code? Code: let x = 10; while (x > 0) { console.log(x); x -= 2; }

A). 10 8 6 4 2 0

B). 10 8 6 4 2

C). 8 6 4 2 0

D). 9 7 5 3 1 -1

What is the purpose of the following JavaScript statement? let name = 'John';

A). Declare a function

B). Declare a variable

C). Print a message to the console

D). Loop through an array

Which of the following JavaScript statements is used to execute different code based on a specified condition?

A). Function declaration statement

B). Assignment statement

C). Conditional statement (if statement)

D). Looping statement (for loop)

What does the following JavaScript code snippet do? Code: let result = x > 0 ? 'Positive' : (x < 0 ? 'Negative' : 'Zero');

A). Assigns 'Positive' to result if x is greater than 0, 'Negative' if x is less than 0, otherwise 'Zero'

B). Checks if x is greater than 0 and assigns 'Positive', otherwise checks if x is less than 0 and assigns 'Negative', otherwise assigns 'Zero'

C). Assigns 'Positive' to result if x is less than 0, 'Negative' if x is greater than 0, otherwise 'Zero'

D). None of the above

What will be the output of the following JavaScript code? Code: let x = 15; if (x > 10) { console.log('x is greater than 10'); } else { console.log('x is not greater than 10'); }

A). x is greater than 10

B). x is not greater than 10

C). Undefined

D). Error

What is the purpose of the following JavaScript statement? break;

A). Assigns a value to a variable

B). Exits the current loop or switch statement

C). Skips the current iteration in a loop

D). Continues to the next iteration in a loop

What will be the output of the following JavaScript code? Code: let x = 7; if (x % 2 === 0) { console.log('Even'); } else { console.log('Odd'); }

A). Even

B). Odd

C). 7

D). None of the above

What does the following JavaScript code snippet do? Code: let x = 10; if (x % 2 === 0) { console.log('Even'); } else { console.log('Odd'); }

A). Checks if x is even and prints 'Even'

B). Checks if x is odd and prints 'Odd'

C). Checks if x is greater than 0 and prints 'Positive'

D). Checks if x is less than 0 and prints 'Negative'

Which of the following JavaScript statements is used to execute a block of code repeatedly until a specified condition becomes false?

A). Function declaration statement

B). Conditional statement (if statement)

C). Assignment statement

D). Looping statement (do-while loop)

What will be the output of the following JavaScript code? Code: let i = 3; do { console.log(i); i--; } while (i > 0);

A). 3 2 1

B). 2 1 0

C). 3 2 1 0

D). 1 2 3