Answer & Solution
<div>The unary operator + converts its operand to a number, so + '5' results in 5.</div>
<div>The unary operator + converts its operand to a number, so + '5' results in 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 20 / '5' in JavaScript?
A). 4
B). NaN
C). Infinity
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 output of '7' - 3 in JavaScript?
A). 4
B). '4'
C). NaN
D). Error
What does the operator
A).
B). do in JavaScript?
C). Logical AND
D). Logical OR
What will be the result of '10' + 10 in JavaScript?
A). '1010'
B). 20
C). NaN
D). Error
What will be the result of 5 == '5' in JavaScript?
A). 1
B). 0
C). Error
D). Undefined
What will be the result of 10 + '5' in JavaScript?
A). 15
B). 105
C). NaN
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 = 5; x += '2';?
A). 7
B). '72'
C). 52
D). NaN