What will be the output of the following JavaScript code? Code: let x = 15; if (x % 2 === 0) { console.log('Even'); } else { console.log('Odd'); }
A). A) Even
B). B) Odd
C). C) 15
D). D) None of the above
What does the following JavaScript code snippet do? Code: let numbers = [1, 2, 3, 4, 5]; let product = numbers.reduce((total, num) => total * num, 1); console.log(product);
A). A) Calculates the sum of numbers in numbers
B). B) Finds the maximum number in numbers
C). C) Calculates the product of numbers in numbers
D). D) Checks if all numbers in numbers are even
What will be the output of the following JavaScript code? Code: let x = 30; if (x % 2 === 0) { console.log('Even'); } else { console.log('Odd'); }
A). A) Even
B). B) Odd
C). C) 30
D). D) None of the above
What does the following JavaScript code snippet do? Code: let names = ['Alice', 'Bob', 'Charlie']; let message = 'Names: ' + names.join(', '); console.log(message);
A). A) Adds names to an array
B). B) Joins names from an array into a single string
C). C) Splits names into an array
D). D) Reverses the order of names in an array
What does the following JavaScript code snippet do? Code: let numbers = [1, 2, 3, 4, 5]; let avg = numbers.reduce((total, num) => total + num, 0) / numbers.length; console.log(avg);
A). A) Calculates the sum of numbers in numbers
B). B) Finds the maximum number in numbers
C). C) Calculates the average of numbers in numbers
D). D) Checks if all numbers in numbers are even
What will be the output of the following JavaScript code? Code: console.log(typeof null);
A). A) Object
B). B) Null
C). C) Undefined
D). D) String
What will be the output of the following JavaScript code? Code: console.log('20' - 10);
A). A) 10
B). B) 30
C). C) '2010'
D). D) NaN
What does the following JavaScript code snippet do? Code: let x = 'Hello'; let y = x.length; console.log(y);
A). A) Stores the length of the string x in y
B). B) Converts x to uppercase
C). C) Converts x to lowercase
D). D) Finds the index of a character in x
What does the following JavaScript code snippet do? Code: let numbers = [1, 2, 3, 4, 5]; let max = Math.max(...numbers); console.log(max);
A). A) Calculates the sum of numbers in numbers
B). B) Finds the maximum number in numbers
C). C) Calculates the product of numbers in numbers
D). D) Checks if all numbers in numbers are even
What does the following JavaScript code snippet do? Code: let numbers = [1, 2, 3, 4, 5]; let min = Math.min(...numbers); console.log(min);
A). A) Calculates the sum of numbers in numbers
B). B) Finds the minimum number in numbers
C). C) Calculates the product of numbers in numbers
D). D) Checks if all numbers in numbers are even