TS Basic: Intro

June 9, 2023

What

Typescript is a tool that provides type-checking before you run your code. Javascript provides dynamic typing running the code to see what happens. TS predicts what code is expected before it runs.

Why

• TS will know what kind of type your variable is ( string, number, or object )
• avoids type errors
• if your function is non-existent it’ll inform you right away before running your code
• if you have an issue with your object it’ll tell you which object and what type it should be used instead of just throwing a undefined
• Static Type Checking
  • tools that help find bugs 🐞 before our code runs.
  • describes the shape and behavior of what our values will be when we run our program
  • TS tells us when thing might be going off the rails 🚂
• captures Non-exception Failures
  1. undefined - instead of throwing it to you undefined TS will tell you the property does not exist and tell you the available property of the object
  2. Typos - TS caches typos
  3. uncalled function - throw errors on your uncalled/unused functions
  4. basic logic error

Installation of TSC ( Typescript Compiler )

global

npm install -g typescript

module level

npm install typescript

👌Bawas sa pagcheck sa console at browser kung may mali ba code mo.