BNP Paribas India Solutions Interview Questions and Answers

loadChildren is used to lazy load modules in Angular

• Used in routing to load modules on demand

• Improves initial load time of the application

• Syntax: loadChildren: () => import('path/to/module').then(m => m.ModuleName)

map and filter are higher-order functions in JavaScript used to manipulate arrays.

• map() creates a new array by applying a function to each element of the original array.

• filter() creates a new array with all elements that pass the test implemented by the provided function.

• Both functions do not modify the original array.

• Both functions can be chained together to perform complex operations on arrays.

A queue can be implemented using two stacks.

• Push elements onto the first stack.

• When dequeuing, pop all elements from the first stack and push onto the second stack.

• Pop the top element from the second stack to dequeue.

• If the second stack is empty, pop all elements from the first stack and push onto the second stack.