Answer & Solution
Answer: Option A
Solution:
Lexical scoping allows nested functions to inherit variables from their outer functions, creating closures and preserving scope.
Q
How does lexical scoping affect nested functions in JavaScript?
Related Questions on Average
What is the output of console.log(outerVar); outside of outerFunction if var outerVar = 'Outer'; is defined inside outerFunction?
A). Outer
B). undefined
C). Error
D). null
Which keyword is used to declare a function-scoped variable?
A). var
B). let
C). const
D). function
Can function-scoped variables be accessed from outside their functions?
A). Yes
B). No
C). Only if they are constants
D). Only if they are defined globally
What is the output of console.log(blockVar); outside of a block if let blockVar = 'Block'; is defined inside a block?
A). Block
B). undefined
C). Error
D). null
How do you declare a function-scoped variable using ES6?
A). var
B). let
C). const
D). function
What is lexical scoping in JavaScript?
A). Variables scoped to the entire codebase
B). Variables scoped to their functions
C). Variables scoped based on their position in the code
D). Variables scoped based on their names
How do you declare a block-scoped variable in ES6?
A). var
B). let
C). const
D). function
Which of the following demonstrates lexical scoping?
A). Closure
B). Hoisting
C). Global scope
D). Local scope
What is block scope in JavaScript?
A). Variables scoped to a block
B). Variables scoped to a function
C). Variables scoped globally
D). Variables scoped locally
What is the purpose of function scope in JavaScript?
A). To limit the visibility of variables
B). To make variables global
C). To create constants
D). To execute functions