Initialize TypeScript project with basic configuration and example function

.gitignore

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+# TypeScript output
+dist/
+*.tsbuildinfo
+
+# Node modules
+node_modules/
+
+# Logs
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# System files
+.DS_Store
+Thumbs.db
+
+# IDE stuff
+.vscode/
+.idea/
+*.swp
+
+# Env stuff
+.env

.npmignore

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+src/
+test.ts
+tsconfig.json
+*.log
+node_modules/

package.json

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+{
+  "name": "testosmaximus",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC"
+}

src/index.ts

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+export function crackNut(nut: string): string {
+  return `*CRACK!* The ${nut} has been broken by pure TypeScript violence.`;
+}

test.ts

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+import { crackNut } from './src/index';
+
+console.log(crackNut('hazelnut'));

tsconfig.json

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+{
+  "compilerOptions": {
+    "target": "ES2020",
+    "module": "ESNext",
+    "moduleResolution": "Node",
+    "outDir": "dist",
+    "declaration": true,
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true,
+    "strict": true,
+    "skipLibCheck": true
+  },
+  "include": ["src"]
+}