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
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 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 i = 0; for (; i < 3; i++) { console.log(i); }
A). 0 1 2 3
B). 0 1 2
C). 1 2 3
D). 1 2 3 4
What does the following JavaScript code snippet do? Code: let x = 5; while (x > 0) { console.log(x); x -= 1; }
A). Prints even numbers from 5 to 1
B). Prints odd numbers from 5 to 1
C). Prints numbers from 5 to 0
D). Infinite loop
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]); }
A). Prints all elements of the array numbers
B). Calculates the sum of elements in the array numbers
C). Finds the maximum element in the array numbers
D). Checks if all elements in the array numbers are even
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 does the following JavaScript code snippet do? Code: let numbers = [1, 2, 3, 4, 5]; let sum = 0; for (let num of numbers) { sum += num; } console.log(sum);
A). Finds the maximum number in the array numbers
B). Calculates the average of numbers in the array numbers
C). Sums all numbers in the array numbers
D). Checks if all numbers in the array numbers are even
What is the purpose of the following JavaScript statement? return result;
A). Exits the current loop or switch statement
B). Skips the current iteration in a loop
C). Exits the current function and returns a value
D). Continues to the next iteration in a loop
What will be the output of the following JavaScript code? Code: let nums = [1, 2, 3, 4, 5]; for (let n of nums) { if (n % 2 === 0) { console.log(n); } }
A). 1 3 5
B). 2 4 6
C). 1 2 3 4 5
D). 2 4