Answer & Solution
Answer: Option A
Solution:
Symbols in JavaScript represent unique identifiers and are often used as property keys in objects.
Q
What does the Symbol data type represent in JavaScript?
Related Questions on Average
What is the data type of the value undefined in JavaScript?
A). String
B). Object
C). Undefined
D). Number
What is the result of the expression 5 + '5' in JavaScript?
A). 10
B). '55'
C). '10'
D). Error
What is a primitive value in JavaScript?
A). A complex data structure
B). A basic data type
C). A function
D). An array
Which of the following is a valid way to represent the value null in JavaScript?
A). undefined
B). NULL
C). null
D). None of the above
Which of the following is a primitive data type in JavaScript?
A). Array
B). Object
C). Function
D). String
What happens when you try to access a variable that has not been declared in JavaScript?
A). SyntaxError is thrown
B). ReferenceError is thrown
C). TypeError is thrown
D). Undefined
What is the default value of a variable in JavaScript if it is not initialized?
A). null
B). undefined
C). 0
D). 'undefined'
What is the data type of the value NaN in JavaScript?
A). Number
B). String
C). Object
D). Undefined
Which of the following is not a primitive value in JavaScript?
A). Number
B). Boolean
C). Object
D). String
Which primitive value represents absence of value or no value assigned?
A). undefined
B). null
C). 0
D). 'undefined'