Mountblue Technologies Software Developer 1 Interview Questions and Answers

A closure is a function that has access to its outer function's variables, even after the outer function has returned.

• A closure is created when a function is defined inside another function.

• It allows for private variables and functions in JavaScript.

• Closures are used for data hiding, encapsulation, and creating modules.

• Example: function outer() { var x = 10; function inner() { console.log(x); } return inner; } var clos

Reverse an array of strings

• Iterate through the array from both ends and swap the elements

• Continue swapping until the middle of the array is reached