Recently, I encountered an issue with 2 typescript files:
a.ts:
let some : string = "some";
b.ts:
console.log(some);
Surprisingly, when compiling both files together by including them in the tsconfig or command line, there was no error about 'some' being undefined in b.ts. This made me wonder, how can I compile both files separately? It seems odd for them to share the same namespace in this context.
In the realm of JavaScript, there exists no concept known as a namespace. By ensuring that you load two compiled files in the correct sequence within a web browser, the functionality of console.log can indeed be achieved. TypeScript has the ability to replicate this behavior.
For managing dependencies, the preferred approach in both JavaScript and TypeScript is through the use of ES6 modules, often implemented with tools like Webpack.
An illustration using modules:
// a.ts
export let some = "some";
// b.ts
console.log(some); // Error occurs here
// c.ts
import { some } from "./a"
console.log(some); // Execution successful
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