Answer & Solution
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The code x -= 2 is equivalent to x = x - 2, which results in x = 10 - 2 = 8. Then, x *= 3 is equivalent to x = x * 3, which results in x = 8 * 3 = 24.</div>
<div>
The code x -= 2 is equivalent to x = x - 2, which results in x = 10 - 2 = 8. Then, x *= 3 is equivalent to x = x * 3, which results in x = 8 * 3 = 24.</div>
What will be the output of 10 + '2' - 1 in JavaScript?
A). '101'
B). '10'
C). NaN
D). Error
What will be the output of '5' + 2 - 1 in JavaScript?
A). '52'
B). 6
C). '4'
D). Error
What will be the result of 3 * 'A' in JavaScript?
A). Error
B). NaN
C). 0
D). 3
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 operator
A).
B). do in JavaScript?
C). Logical AND
D). Logical OR
What does the typeof operator return for an array in JavaScript?
A). 'array'
B). 'object'
C). 'null'
D). 'undefined'
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 result of '10' + 10 in JavaScript?
A). '1010'
B). 20
C). NaN
D). Error
What will be the output of 20 / '5' in JavaScript?
A). 4
B). NaN
C). Infinity
D). Error
What will be the output of '2' + 2 + 2 in JavaScript?
A). '222'
B). 6
C). 4
D). Error