TypeScript-basic-examples

• Typescript is a superset of javascript. It has matured a lot since its inception.
• It helps a developer to write clean javscript code
• In addition to javascript typescript has some additional features like Enums, Tuples, Types, etc.

Types:

• similar to Java where method args can be declared with datatypes TS allows the same feature
• Implicit typing is allowed. TS assumes based on the code and does the implicit typing

Typescript is like a developer tool that notifies the developer about code smells End of the day - TS transpiles the ts file into javascript file

how to transpile and run

$ tsc XXXX.ts

compiles and generates the js file

$ node XXXX.js 

executes the compiled js file

$ tsc XXXX.ts --watch 

will automatically compile the changes when a file is modified

running as a npm project

a package.json file is present with the task start. the 'start' task executes the typescript compilation and runs the index.js file

$ npm start