initial commit

- add .gitignore
  - node modules
  - generated js files
- add prettier and eslint configurations
  - prettier: some options configured
  - eslint: js linting disabled
- initialize npm, install packages
- add vscode settings
  - prettier formatting on save disabled

.gitignore

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+node_modules/
+*.js

.prettierrc.mjs

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+/**
+ * @see https://prettier.io/docs/configuration
+ * @type {import("prettier").Config}
+ */
+const config = {
+  trailingComma: "es5",
+  tabWidth: 4,
+  useTabs: true,
+  semi: true,
+  singleQuote: true,
+  printWidth: 120
+};
+
+export default config;

.vscode/settings.json

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+{
+	// "editor.formatOnSave": true,
+	"editor.codeActionsOnSave": {
+		"source.fixAll.eslint": "explicit"
+	},
+	"prettier.requireConfig": true,
+	"[typescript]": {
+		"editor.defaultFormatter": "esbenp.prettier-vscode"
+	},
+    "editor.rulers": [
+        120
+    ],
+}

eslint.config.mjs

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+import js from "@eslint/js"
+import globals from "globals";
+import tseslint from "typescript-eslint";
+import { defineConfig } from "eslint/config";
+
+export default defineConfig([
+  // { 
+  //   files: ["**/*.{js,mjs,cjs}"], 
+  //   plugins: { js }, 
+  //   extends: ["js/recommended"], 
+  //   languageOptions: { globals: globals.node },
+  // },
+  {files: ["**/*.{ts,mts,cts}"], plugins: { tseslint }, extends: [tseslint.configs.recommended], languageOptions: { globals: globals.node }, 
+    rules: {
+      "@typescript-eslint/no-unused-vars": "warn",
+    },
+  },
+]);

main.ts

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+const name = 'Mikko'; // type is inferred as a string
+let ageoftheknownuniverseandbeyond = 41; // type is inferred as a number
+const rightHanded = true; // type is inferred as a boolean
+
+ageoftheknownuniverseandbeyond = 12412432094509384890389045890389045890348905389045890308945034;
+
+if (ageoftheknownuniverseandbeyond < 4223 && ageoftheknownuniverseandbeyond > 10)
+	console.log('jeeje');
+
+if (name == 'Mikko' || name == 'Matti') {
+	console.log('jee');
+}
+console.log(ageoftheknownuniverseandbeyond);
+
+export {};

package.json

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+{
+  "dependencies": {
+    "@types/node": "^24.5.2",
+    "typescript": "^5.9.2"
+  },
+  "devDependencies": {
+    "@eslint/js": "^9.36.0",
+    "eslint": "^9.36.0",
+    "globals": "^16.4.0",
+    "prettier": "^3.6.2",
+    "typescript-eslint": "^8.44.1"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "lintfix": "eslint . --fix"
+  }
+}