Angular is a platform and framework for building single-page client applications using HTML and TypeScript. Angular is written in TypeScript. It implements core and optional functionality as a set of TypeScript libraries that you import into your applications.

What does meaning in Angular?

1a : having an angle or angles. b : forming an angle or corner : sharp-cornered. 2 : measured by an angle angular distance.

What is the use of in Angular?

It’s called Safe Navigation Operator which can be used to prevent Angular from throwing errors, when trying to access object properties of an object that don’t exist. Here it is, protecting against a view render failure if the header is null.