feat: ts + jest

src/2021-11/jest-typescript/babel.config.js

@@ -0,0 +1,6 @@
+module.exports = {
+ presets: [
+ ['@babel/preset-env', {targets: {node: 'current'}}],
+ '@babel/preset-typescript',
+ ],
+};

src/2021-11/jest-typescript/package.json

@@ -0,0 +1,15 @@
+{
+ "name": "jest-typescript",
+ "version": "1.0.0",
+ "scripts": {
+ "test": "jest"
+ },
+ "devDependencies": {
+ "@babel/preset-env": "^7.16.4",
+ "@babel/preset-typescript": "^7.16.0",
+ "@types/jest": "^27.0.3",
+ "@types/node": "^16.11.10",
+ "jest": "^27.3.1",
+ "typescript": "^4.5.2"
+ }
+}

src/2021-11/jest-typescript/src/sum.test.ts

@@ -0,0 +1,5 @@
+import sum from './sum'
+
+test('adds 1 + 2 to equal 3', () => {
+ expect(sum(1, 2)).toBe(3);
+});

src/2021-11/jest-typescript/src/sum.ts

@@ -0,0 +1,5 @@
+function sum(a: number, b: number) {
+ return a + b
+}
+
+export default sum;

src/2021-11/jest-typescript/tsconfig.json

@@ -0,0 +1,15 @@
+{
+ "compilerOptions": {
+ "lib": [
+ "ES2015"
+ ],
+ "module": "commonjs",
+ "outDir": "dist",
+ "sourceMap": true,
+ "strict": true,
+ "target": "es2015"
+ },
+ "include": [
+ "src"
+ ]
+}