TypeScript is "JavaScript that scales." A key part of "scales" is the language services, which are a core part of the TypeScript. Losing them will lead to a loss in productivity, not just for you but for everyone else working with your code.
Duration: 04:22:18, Released: 05/01/2022, Author: Mosh
Duration: 29:21:20, Updated: 04/10/2021, Author: Steven Grider
Duration: 01:02:57, Date added: 03/29/2021
Duration: 02:00:53, Date added: 01/16/2021, Author: ui.dev
Duration: 24:38:03, Updated: 01/11/2021, Author: Steven Grider
Duration: 05:10:46, Updated: 11/16/2020
Duration: 06:02:19, Date added: 06/03/2020, Author: James Henry (great British accent)
by Dr. Axel Rauschmayer, 2020
by Anthony Accomazzo, Nate Murray, Ari Lerner, Clay Allsopp, David Guttman, and Tyler McGinnis
Extends is used to get attributes of a parent class into base class and may contain already defined methods that can be overridden in the child class.
Implements is used to implement an interface (parent class with functions signatures only but not their definitions) by defining it in the child class.