Refactor (#1)

* fix folder structure. add build command

* remove mathjs, add jest

* add jest, babel and test config

* add prettier config

* change extensions to ts

* refactor package

* use up to date jstat

* refactor grubbs

* add github actions

* change workflow name

Author: aozisik

.github/workflows/main.yml

@@ -0,0 +1,17 @@
+on: push
+name: Run Tests
+jobs:
+  run-tests:
+    runs-on: ubuntu-latest
+    container:
+      image: node:14
+
+    steps:
+      - uses: actions/checkout@v1
+        with:
+          fetch-depth: 1
+
+      - name: Run tests
+        run: |
+          npm ci
+          npm run test

.prettierrc

@@ -0,0 +1,4 @@
+{
+    "singleQuote": true,
+    "tabWidth": 2
+}

babel.config.js

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

jest.config.js

@@ -0,0 +1,5 @@
+module.exports = {
+  preset: "ts-jest",
+  testEnvironment: "node",
+  testRegex: "tests/.*\\.ts$",
+};