/typescript-practice

Typescript learning and exploring more !

Primary LanguageTypeScript

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Reference : https://www.typescripttutorial.net/

INTRODUCTION :

TypeScript is Typed JavaScript. TypeScript adds types to JavaScript to help you speed up the development by catching errors before you even run the JavaScript code.

  • Typescript is a superset of Javascript, meaning every valid javascript code is valid typscript code as types are optional but using types gives more control for the code maintainability.
  • Typescript gives the compiled time error as it is statically typed language, thus helping in catching compile time errors which is really beneficial for the applications debugging and more.
  • Typescript code under the hood, gets compiled to javascript which is understood by the browser. i.e .ts -----> .js [transpiled is what is used as a technical term]
  • Adding export {} at the top of the file makes a typescript file a separate module thus avoiding error.
  • To compile / transpile we use typescript typescript compiler, and do this on command : tsc fileName.ts The above line will generate fileName.js file which is the final file to run which we can run as : node fileName.js If want to achieve the same thing at one go , we have a wasy : tsc fileName.ts && node fileName.js