What is the value of the expression null == undefined?
A). 1
B). 0
C). null
D). undefined
What is the result of 5 === '5'?
A). 1
B). 0
C). 1
D). 0
Which operator is used for string concatenation in JavaScript?
A). -
B). *
C). +
D). /
Which of the following operators can be used to compare two values, including type comparison?
A). ==
B). =
C). ===
D). !==
Which operator is used to assign a value to a variable in JavaScript?
A). =
B). ==
C). ===
D). =>
What is the result of '5' - 2?
A). 3
B). 3
C). 03-May
D). NaN
What does typeof NaN return?
A). number
B). NaN
C). undefined
D). object
What does the + operator do when used with two numbers?
A). Concatenates them as strings
B). Adds them
C). Multiplies them
D). Subtracts them
Which operator checks if two values are not equal and also checks for type?
A). !=
B). !==
C). <
D). >
What does the typeof operator return for a function?
A). function
B). object
C). undefined
D). method