Understanding Enums in TypeScript: What They Are and How to Use Them

What Are Enums in TypeScript? Enums, short for "enumerations," are a special feature in TypeScript used for defining sets of named constants. They make your code easier to read and maintain by grouping related values together and giving each one a descriptive name. Why Use Enums? Prevent magic numbers or strings in your code Make code easier to understand and maintain Catch errors at compile-time How to Define and Use Enums Numeric Enums (Default) enum Direction { Up , Down , Left , Right } let move : Direction = Direction . Up ; console . log ( move ); // Output: 0 String Enums enum Response { Yes = " YES " , No = " NO " } function reply ( answer : Response ) { console . log ( answer ); } reply ( Response . Yes ); // Output: YES Example Use Case Suppose you build a navigation menu: enum Menu { Home , About , Contact } function navigate ( page : Menu ) { if ( page === Menu . Home ) { // Navigate to home page } } Summary: Enums organize sets of related constants Use them for cleaner, sa