Answer & Solution
Answer: Option C
Solution:
The Boolean data type represents logical values in JavaScript. It's used to express true/false conditions and control program flow based on logical decisions.
Q
Which of the following statements accurately describes the Boolean data type in JavaScript?
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Which primitive data type represents textual data?
A). Number
B). String
C). Boolean
D). Undefined
Which primitive data type in JavaScript represents integers and floating-point numbers?
A). Number
B). String
C). Boolean
D). Undefined
Which data type is represented by the value null in JavaScript?
A). Numeric data
B). Textual data
C). Absence of value
D). Logical value
How is the Symbol data type different from other primitive data types in JavaScript?
A). Symbols can be used as object keys
B). Symbols can be compared directly
C). Symbols can be used in mathematical operations
D). Symbols can be concatenated with strings
Which of the following statements accurately describes the Boolean data type in JavaScript?
A). It represents textual data
B). It represents numeric data
C). It represents logical values
D). It represents an absence of value
What does the expression typeof '123' return in JavaScript?
A). number
B). string
C). undefined
D). boolean
What does the expression typeof true return in JavaScript?
A). number
B). string
C). boolean
D). undefined
Which data type represents variables that have been explicitly set to have no value?
A). Number
B). Undefined
C). String
D). Null
What is the result of the expression typeof 'Hello' in JavaScript?
A). number
B). string
C). undefined
D). boolean
What does the expression typeof 42 return in JavaScript?
A). number
B). string
C). undefined
D). boolean