Answer & Solution
Answer: Option B
Solution:
JavaScript performs implicit type conversion (coercion) when adding a number and a string, resulting in a string concatenation.
Q
What is the result of the expression 5 + '5' 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
Which of the following statements is true about primitive data types in JavaScript?
A). They have methods and properties
B). They can be used as keys in objects
C). They are instances of Object
D). They are passed by value
Which of the following is a primitive data type in JavaScript?
A). Array
B). Object
C). Function
D). String
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
What happens when you add two numbers using the + operator in JavaScript?
A). The numbers are concatenated
B). The numbers are multiplied
C). The numbers are added
D). An error occurs
What is the result of the expression true == 1 in JavaScript?
A). true
B). false
C). Error
D). 1
What is the result of the expression true + false in JavaScript?
A). true
B). false
C). 1
D). 0
Which of the following statements is true about JavaScript's null value?
A). It represents an empty string
B). It represents a non-existent value
C). It represents a boolean value
D). It represents a number
Which of the following is a valid JavaScript symbol?
A). symbol
B). &symbol
C). #symbol
D). Symbol('description')