explain TypeScript and Duck Typing

Type Script is a programming language that is a su pers et of JavaScript , meaning that any valid JavaScript code is also valid Type Script code . Type Script adds additional features to JavaScript , such as type declarations , interfaces , and classes , that can help developers create large and maintain able applications . \n \n D uck typing is a concept in dynamic programming languages in which an object ' s methods and properties determine its type , rather than its class . In other words , if an object has the same methods and properties as another object , it is considered to be of the same type . This is in contrast to static typing , where an object ' s type is determined by its class or interface . \n \n Type Script supports both static and du ck typing . Type declarations allow developers to specify the type of a variable or function , which can help catch type - related errors during development . However , Type Script also allows for " du ck typing " by default , meaning that if a variable or function has the same methods and properties as another variable or function , it will be considered to be of the same type . This can make it easier to write code that is compatible with both static and dynamic programming languages . </s>