bump dev deps and add more helpful ones

Author: rpearce

.eslintignore

@@ -1,2 +1 @@
 coverage/
-node_modules/

.eslintrc

@@ -0,0 +1,29 @@
+module.exports = {
+  env: {
+    browser: true,
+    es6: true,
+    node: true
+  },
+  extends: [
+    'eslint:recommended',
+    'plugin:prettier/recommended',
+    'plugin:react/recommended'
+  ],
+  parserOptions: {
+    ecmaVersion: 2019,
+    sourceType: 'module'
+  },
+  plugins: [],
+  rules: {
+    'indent': ['error', 2, { 'SwitchCase': 1 }],
+    'no-trailing-spaces': 'error',
+    'object-curly-spacing': ['error', 'always'],
+    'quotes': ['error', 'single', { 'allowTemplateLiterals': true }],
+    'semi': ['error', 'never']
+  },
+  settings: {
+    react: {
+      version: '16'
+    }
+  }
+}

.eslintrc.js

@@ -0,0 +1,4 @@
+module.exports = {
+  semi: false,
+  singleQuote: true
+}

.prettierrc.js

@@ -1,6 +1,6 @@
 language: node_js
 node_js:
-  - "11"
+  - "12"
 cache: yarn
 after_success:
   - npm run coverage

.travis.yml

@@ -0,0 +1,7 @@
+export default {
+  babel: {
+    testOptions: {
+      presets: ['@babel/preset-react']
+    }
+  }
+}

ava.config.js

@@ -0,0 +1,5 @@
+module.exports = {
+  hooks: {
+    'pre-commit': 'lint-staged'
+  }
+}

husky.config.js

@@ -14,9 +14,10 @@ function flexibleStringReplace(pattern, replacement, str) {
     var originalStr = args[argsN - 1]
     var charOffset = args[argsN - 2]
     var prevChars = originalStr.slice(position, charOffset)
-    var replaced = typeof replacement === 'function'
-      ? replacement.apply(null, args)
-      : replacement
+    var replaced =
+      typeof replacement === 'function'
+        ? replacement.apply(null, args)
+        : replacement
 
     result.push(prevChars, replaced)
     position = charOffset + match.length

index.js

@@ -0,0 +1,3 @@
+module.exports = {
+  '*.js': ['eslint --fix', 'git add']
+}

lint-staged.config.js

@@ -0,0 +1,3 @@
+module.exports = {
+  include: ['index.js']
+}