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 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 i = 1; do { console.log(i); i++; } while (i < 3);
A). 1 2 3
B). 1 2 3 4
C). 2 3 4
D). Infinite loop
What is the purpose of the following JavaScript statement? let result = x > 0 ? 'Positive' : 'Non-positive';
A). Assigns the value 'Positive' to result if x is greater than 0, otherwise assigns 'Non-positive'
B). Checks if x is greater than 0
C). Prints 'Positive' if x is greater than 0, otherwise prints 'Non-positive'
D). None of the above
What does the following JavaScript code snippet do? Code: let num = 5; while (num > 0) { console.log(num); num--; }
A). Declares a variable and assigns a value to it
B). Executes a block of code repeatedly until a condition becomes false
C). Calculates the sum of numbers from 1 to 5
D). Checks if a number is positive or negative
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 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 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 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 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