What Is the “declare” Keyword?
- The “declare” keyword informs the TypeScript compiler that a variable or method exists in another file (typically a JavaScript file).
- It’s similar to an “import” statement but doesn’t import anything; instead, it provides type information.
Explain when to use “declare” keyword in TypeScript
In TypeScript, the “declare” keyword is important in ambient declarations. These declarations allow us to integrate third-party JavaScript libraries seamlessly into our TypeScript codebase. Think of it as a bridge that connects TypeScript with existing JavaScript code. In this article, we’ll explore when and how to use the “declare” keyword effectively in TypeScript.