Merge branch 'part3/finish'

Author: jmw5598

.eslintignore

@@ -0,0 +1,3 @@
+node_modules/*
+dist/*
+coverage/*

.eslintrc

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+{
+  "parser": "@typescript-eslint/parser",
+  "extends": [
+    "plugin:@typescript-eslint/recommended",
+    "prettier/@typescript-eslint",
+    "plugin:prettier/recommended"
+  ],
+  "parserOptions": {
+    "ecmaVersion": 2018,
+    "sourceType": "module"
+  },
+  "rules": {
+    "prettier/prettier": ["error", { "singleQuote": true }],
+    "@typescript-eslint/explicit-function-return-type": "error",
+    "@typescript-eslint/no-explicit-any": 1,
+    "@typescript-eslint/no-inferrable-types": ["error", { "ignoreParameters": true }]
+  },
+  "env": {
+    "node": true
+  }
+}

.prettierrc

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+{
+  "semi": true,
+  "trailingComma": "all",
+  "singleQuote": true,
+  "printWidth": 120,
+  "tabWidth": 2
+}