Answer & Solution
Answer: Option B
Solution:
JavaScript implicitly converts the string '10' to a number in arithmetic operations, resulting in 5.
Q
What will let x = '10'; let y = x - 5; console.log(y); output in JavaScript?
Related Questions on Average
Which data type represents an intentional absence of any value in JavaScript?
A). Null
B). Undefined
C). String
D). Number
Which of these is a complex or reference data type in JavaScript?
A). Number
B). Boolean
C). Object
D). String
What does NaN represent in JavaScript?
A). Not a Number
B). Infinity
C). Positive Infinity
D). Negative Infinity
What is the outcome of typeof [1, 2, 3] in JavaScript?
A). String
B). Number
C). Array
D). Object
What is the data type of the value 42 in JavaScript?
A). String
B). Boolean
C). Number
D). Null
Which data type represents a block of reusable code in JavaScript?
A). String
B). Object
C). Function
D). Number
What will be the result of typeof 'hello' in JavaScript?
A). String
B). Number
C). Undefined
D). Function
Which data type represents unique and immutable values in JavaScript introduced in ES6?
A). Symbol
B). Object
C). Array
D). Function
Which of the following is not a valid data type in JavaScript?
A). Array
B). Symbol
C). Map
D). Tuple
What is the data type of the value 'null' (with quotes) in JavaScript?
A). String
B). Number
C). Null
D). Undefined