Merge branch 'master' of github.com:klesun/ts-browser

README.md

@@ -18,7 +18,7 @@ Usage: ([sample project](https://klesun.net/entry/midiana/))
 ```
 ```typescript
 // index.ts
-import {makePanel} from './utils/SomeDomMaker';
+import {makePanel} from './utils/SomeDomMaker.ts';
 
 export default (composeCont) => {
     composeCont.appendChild(makePanel());
@@ -46,6 +46,18 @@ ________________
 
 I highly recommend you to also use the [@typescript-eslint/consistent-type-imports](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/docs/rules/consistent-type-imports.md) eslint rule to make sure that no redundant http requests will be performed for type-only imports 
 
+If you are using `.tsx` and the load speed is more important than compatibility with plain `tsc` emit for you, then I also suggest to set [`allowImportingTsExtensions`](https://www.typescriptlang.org/tsconfig/#allowImportingTsExtensions) to `true` in `compilerOptions` of your `tsconfig.json` and to install [`eslint-plugin-import`](https://github.com/import-js/eslint-plugin-import) with following configuration:
+```json
+"import/extensions": ["error", {
+  "ts": "always",
+  "tsx": "always",
+  "js": "always",
+  "jsx": "always"
+}],
+```
+This will enforce `.ts`/`.tsx` extensions in your imports allowing the compiler to know exactly what file to fetch instead of probing all possible extensions - that basically reduces the number of http requests by half, especially crucial on cellular network.
+____________________
+
 The script uses [`typescriptServices.js`](https://github.com/microsoft/TypeScript/blob/master/lib/typescriptServices.d.ts) to parse ts file for dependencies and transpile it to js.
 
 Each file loads about 10-50 milliseconds. Some basic optimization is applied during compilation, like using [web workers](https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers) and storing compilation results in [`window.localStorage`](https://developer.mozilla.org/en-US/docs/Web/API/Window/localStorage), not sure if it can be optimised further, [would need research](https://github.com/klesun/ts-browser/issues/8).