Answer & Solution
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The code x += 5 is equivalent to x = x + 5, which results in x = 10 + 5 = 15. Then, x /= 3 is equivalent to x = x / 3, which results in x = 15 / 3 = 5.</div>
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The code x += 5 is equivalent to x = x + 5, which results in x = 10 + 5 = 15. Then, x /= 3 is equivalent to x = x / 3, which results in x = 15 / 3 = 5.</div>
What does the typeof operator return for an array in JavaScript?
A). 'array'
B). 'object'
C). 'null'
D). 'undefined'
What will be the output of '2' + 2 + 2 in JavaScript?
A). '222'
B). 6
C). 4
D). Error
What will be the value of x after executing the code: let x = 10; x /= 2;?
A). 5
B). 20
C). 0
D). 2
What does the unary operator + do to a string in JavaScript?
A). Concatenates it
B). Ignores it
C). Converts it to a number
D). Throws an error
What will be the output of 10 + '2' - 1 in JavaScript?
A). '101'
B). '10'
C). NaN
D). Error
What is the purpose of the % operator in JavaScript?
A). Exponentiation
B). Division
C). Modulus
D). Concatenation
What will be the result of 10 + '5' in JavaScript?
A). 15
B). 105
C). NaN
D). Error
What will be the value of x after executing the code: let x = 5; x += '2';?
A). 7
B). '72'
C). 52
D). NaN
What will be the value of x after executing the code: let x = 10; x -= 2; x *= 3;?
A). 24
B). 30
C). 36
D). 12
What will be the output of 20 / '5' in JavaScript?
A). 4
B). NaN
C). Infinity
D). Error