Getting Started With Type Script

TypeScript Overview

Think of TypeScript as JavaScript + the type system.

Here's a summary of the type system at a high level:

• Purpose: Helps us catch error during development

  • In contrast, JavaScript only gives errors at runtime

  • TypeScript can catch errors by constantly analyzing your code

• How: Uses type annotations to analyze the code

  • Think of annotations as little comments to describe the purpose/information about the program

• Disclaimers:

  • Disappears once you compile the code down to JS and deploy and/or run the application

  • Does NOT provide any performance optimizations