What is the outcome of let x = 8; x %= 3;?
A). 1
B). 2
C). 3
D). 5
Which operator assigns a remainder to a variable?
A). +=
B). -=
C). *=
D). %=
Which of these correctly assigns values to variables using array destructuring?
A). [x, y, z] = [1, 2, 3]
B). [1, 2, 3] = [x, y, z]
C). let [x y z] = [1 2 3];
D). (x, y, z) = [1, 2, 3];
How can you swap the values of two variables a and b in one line?
A). [a, b] = [b, a]
B). a = b, b = a
C). a == b, b == a
D). a === b, b === a
How to increment a variable count by 1?
A). count + 1
B). count += 1
C). count =+ 1
D). count = 1
Can a constant objects properties be changed?
A). Yes
B). No
C). Only if redeclared
D). Only with special methods
How do you assign default values in destructuring?
A). let { a, b } = { a: 1 };
B). let { a = 1, b = 2 } = {};
C). let [a, b] = [1, 2];
D). let { a, b } = { a: 1, b: 2 };
What is the result of let x = 10; x -= 3;?
A). 7
B). 13
C). 10
D). 3
What will be the value of x after the following code: let x = 10; x += 5;
A). 5
B). 10
C). 15
D). 20
What will be the output of let { a, b } = { a: 1, b: 2, c: 3 };?
A). a is 1, b is 2
B). a is 2, b is 3
C). a is 1, b is undefined
D). a is 3, b is undefined