feat: add prettier to format

.eslintrc

@@ -7,8 +7,10 @@
       "jsx": true
     }
   },
+  "plugins": ["prettier"],
   "rules": {
     "semi": [1, "never"],
-    "indent": ["error", 2]
+    "indent": ["error", 2], 
+    "prettier/prettier": "error"
   }
 }

.gitignore

@@ -6,6 +6,7 @@ node_modules
 /coverage
 package-lock.json
 /test/ts/**/*.js
+yarn.lock
 
 # Editor and IDE configuration
 .vscode/

.prettierignore

@@ -0,0 +1,2 @@
+dist
+node_modules

.prettierrc.js

@@ -0,0 +1,9 @@
+module.exports = {
+  printWidth: 80,
+  tabWidth: 2,
+  useTabs: false,
+  singleQuote: false,
+  semi: true,
+  trailingComma: "none",
+  bracketSpacing: true
+};

package.json

@@ -0,0 +1,10 @@
+{
+  "devDependencies": {
+    "eslint-config-prettier": "^8.3.0",
+    "prettier": "2.3.1"
+  },
+  "scripts": {
+    "prettier:check": "prettier --check **/*.{js,jsx,ts,tsx} ",
+    "prettier:write": "prettier --write **/*.{js,jsx,ts,tsx}"
+  }
+}