Closures and Scoping

Question 1

What concept in JavaScript is the idea that programs keep track of variable locations to understand where to access them?

Answer 1

lexical scoping

Question 2

Does JavaScript support private methods natively in the same way that languages like Java do?

Answer 2

No. Even though JavaScript does not support private methods natively in the way languages like Java do, we can still emulate this behavior using closures.

Question 3

Closures in JS and ES6 refer to functions that remember their _____ ________and can further reference that environment’s independent variables.

Answer 3

creation environment

Question 4

_____ ______ refers to the JavaScript concept of programs keeping track of variable locations to understand in which scopes they can be accessed.

Answer 4

Lexical scoping

Question 5

______ ______ create functions based on returning inner functions that manipulate its own arguments and the arguments of the outer function.

Answer 5

Function factories

Question 6

Data encapsulation and private methods don’t exist natively in JavaScript but can be emulated with ______ for data restriction and limited access.

Answer 6

closures