chore: setup tooling (TheAlgorithms#20)

.gitignore

@@ -0,0 +1,16 @@
+# dependencies
+/node_modules
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# intelliJ workspace folder
+.idea

babel.config.js

@@ -0,0 +1,7 @@
+module.exports = {
+    presets: [
+        ['@babel/preset-env', { targets: { node: 'current' } }],
+        '@babel/preset-typescript'
+    ]
+};
+

jest.config.ts

@@ -0,0 +1,9 @@
+import type { Config } from "@jest/types";
+// Sync object
+const config: Config.InitialOptions = {
+  verbose: true,
+  transform: {
+    "^.+\\.tsx?$": "ts-jest",
+  },
+};
+export default config;