chore: added eslint config files

Author: Justin Kimbrell

.editorconfig

@@ -0,0 +1,10 @@
+# editorconfig.org
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true

.eslintignore

@@ -0,0 +1 @@
+!docs/.vitepress/

.eslintrc

@@ -0,0 +1,32 @@
+{
+  "root": true,
+  "parser": "@typescript-eslint/parser",
+  "plugins": ["@typescript-eslint", "no-only-tests", "eslint-comments"],
+  "ignorePatterns": ["node_modules", "dist"],
+  "parserOptions": {
+    "project": "./tsconfig.json",
+    "tsconfigRootDir": ".",
+    "sourceType": "module"
+  },
+  "rules": {
+    "indent": "warn",
+    "keyword-spacing": "warn",
+    "semi": "warn",
+    "prefer-const": "warn",
+    "no-console": "warn",
+    "no-debugger": "warn",
+    "no-only-tests/no-only-tests": "warn",
+    "@typescript-eslint/no-unused-vars": [
+      "warn",
+      {
+        "argsIgnorePattern": "^_",
+        "varsIgnorePattern": "^_",
+        "caughtErrorsIgnorePattern": "^_"
+      }
+    ],
+    "@typescript-eslint/no-unnecessary-type-assertion": "warn",
+    "@typescript-eslint/no-unnecessary-condition": "warn",
+    "@typescript-eslint/no-useless-empty-export": "warn",
+    "eslint-comments/no-unused-disable": "warn"
+  }
+}

test/faces/ElapsedTime.test.ts

@@ -16,10 +16,12 @@ describe('ElapsedTime', () => {
     });
 
     it('creates an elapsed time to a given date', () => {
+        const date = new Date;
+
         const instance = flipClock({
             parent: document.createElement('div'),
             face: elapsedTime({
-                to: add(new Date, { seconds: 3 }),
+                to: add(date, { seconds: 3 }),
                 format: '[mm]:[ss]'
             }),
             theme: theme()
@@ -46,10 +48,12 @@ describe('ElapsedTime', () => {
     });
 
     it('creates an elapsed time from a date in the past', () => {
+        const date = new Date;
+
         const instance = flipClock({
             parent: document.createElement('div'),
             face: elapsedTime({
-                from: sub(new Date, { minutes: 60 }),
+                from: sub(date, { minutes: 60 }),
                 format: '[mm]:[ss]'
             }),
             theme: theme()
@@ -67,10 +71,12 @@ describe('ElapsedTime', () => {
     });
 
     it('creates an elapsed time from a date in the future', () => {
+        const date = new Date;
+
         const instance = flipClock({
             parent: document.createElement('div'),
             face: elapsedTime({
-                from: add(new Date, { minutes: 60 }),
+                from: add(date, { minutes: 60 }),
                 format: '[mm]:[ss]'
             }),
             theme: theme()