Improvements (#12)

Author: simonespa

.gitignore

@@ -1,4 +1,4 @@
 .coverage
 .jest
-build
+dist
 node_modules

README.md

@@ -35,3 +35,15 @@ or run it in watch mode
 ```
 npm run test:watch
 ```
+
+## References:
+
+- https://www.typescriptlang.org/docs/
+- https://www.typescriptlang.org/docs/handbook/intro.html
+- https://www.typescriptlang.org/play
+- https://kangax.github.io/compat-table/es6/
+- https://caniuse.com/
+- https://github.com/onionmccabbage/es-ts-Feb-2022
+- https://reactivex.io/
+- https://rxjs.dev/guide/overview
+- https://rxmarbles.com/

src/.DS_Store

@@ -0,0 +1,29 @@
+const params = [
+  {
+    a: 0,
+    b: 0,
+    result: 0
+  },
+  {
+    a: 1,
+    b: 0,
+    result: 1
+  },
+  {
+    a: 0,
+    b: 1,
+    result: 1
+  },
+  {
+    a: -1,
+    b: 1,
+    result: 0
+  },
+  {
+    a: -1,
+    b: -1,
+    result: -2
+  },
+]
+
+export default params;

test/sum.params.ts

@@ -1,7 +1,6 @@
 import sum from 'src/sum';
+import params from './sum.params';
 
-test('basic', () => {
-  const a = 3;
-  const b = 2;
-  expect(sum(a, b)).toBe(a + b);
+test.each(params)('sum($a, $b) to return $result', ({a, b, result}) => {
+  expect(sum(a, b)).toBe(result);
 });

test/sum.test.ts

@@ -1,24 +1,18 @@
 {
+  "$schema": "https://json.schemastore.org/tsconfig",
+  "display": "Custom Config",
   "compilerOptions": {
+    "outDir": "dist",
     "baseUrl": "./",
     "paths": {
       "src/*": ["src/*"]
     },
-    "target": "es5",
-    "lib": ["esnext"],
-    "allowJs": true,
-    "skipLibCheck": true,
-    "strict": false,
-    "forceConsistentCasingInFileNames": true,
-    "outDir": "build",
-    "noEmit": false,
-    "esModuleInterop": true,
-    "module": "esnext",
-    "moduleResolution": "node",
+    "target": "ES2017",
+    "module": "ESNext",
+    "moduleResolution": "Node",
     "resolveJsonModule": true,
-    "isolatedModules": true,
-    "jsx": "preserve",
-    "incremental": true
+    "incremental": true,
+    "esModuleInterop": true
   },
   "watchOptions": {
     // Use native file system events for files and directories
@@ -29,6 +23,6 @@
     // when they're updated a lot.
     "fallbackPolling": "dynamicPriority"
   },
-  "include": ["next-env.d.ts", "src/**/*.ts", "src/**/*.tsx", "test/**/*.ts", "test/**/*.tsx"],
-  "exclude": ["node_modules"]
+  "include": ["src/**/*.ts"],
+  "exclude": ["node_modules", "test/**/*.ts"]
 }