2. Bridging the Gap: TypeScript's `declare` for External Variables and APIs
   Here's an example of how to use declare to provide type information for a global variable:In this example, we are telling the TypeScript compiler that a global variable named $ exists and that it has the type JQuery
3. Taming the Wild `this`: Type Safety for Methods and Functions in TypeScript
   In TypeScript, the this keyword refers to the current object context within a function, method, or constructor.By default