Switch to default mode

.eslintrc.json

@@ -0,0 +1,14 @@
+{
+  "extends": "react-app",
+  "parserOptions": {
+    "ecmaVersion": 5,
+    "sourceType": "default",
+    "ecmaFeatures": {
+      "jsx": false,
+      "generators": true
+    }
+  },
+  "rules": {
+    "strict": ["warn", "safe"]
+  }
+}

packages/babel-preset-react-app/index.js

@@ -7,7 +7,6 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  */
 
-// eslint-disable-next-line
 'use strict';
 
 var path = require('path');

packages/eslint-config-react-app/index.js

@@ -16,6 +16,8 @@
 // In the future, we might create a separate list of rules for production.
 // It would probably be more strict.
 
+'use strict';
+
 module.exports = {
   root: true,
 

packages/react-dev-utils/InterpolateHtmlPlugin.js

@@ -15,8 +15,8 @@
 // Learn more about creating plugins like this:
 // https://github.com/ampedandwired/html-webpack-plugin#events
 
-// eslint-disable-next-line
 'use strict';
+
 const escapeStringRegexp = require('escape-string-regexp');
 
 class InterpolateHtmlPlugin {

packages/react-dev-utils/WatchMissingNodeModulesPlugin.js

@@ -11,7 +11,6 @@
 // We’re not sure why this isn't Webpack's default behavior.
 // See https://github.com/facebookincubator/create-react-app/issues/186.
 
-// eslint-disable-next-line
 'use strict';
 
 class WatchMissingNodeModulesPlugin {

packages/react-dev-utils/checkRequiredFiles.js

@@ -7,6 +7,8 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  */
 
+'use strict';
+
 var fs = require('fs');
 var path = require('path');
 var chalk = require('chalk');

packages/react-dev-utils/clearConsole.js

@@ -7,6 +7,8 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  */
 
+'use strict';
+
 function clearConsole() {
   process.stdout.write(process.platform === 'win32' ? '\x1Bc' : '\x1B[2J\x1B[3J\x1B[H');
 }

packages/react-dev-utils/formatWebpackMessages.js

@@ -14,6 +14,8 @@
 // This is quite hacky and hopefully won't be needed when Webpack fixes this.
 // https://github.com/webpack/webpack/issues/2878
 
+'use strict';
+
 var friendlySyntaxErrorLabel = 'Syntax error:';
 
 function isLikelyASyntaxError(message) {

packages/react-dev-utils/getProcessForPort.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var chalk = require('chalk');
 var execSync = require('child_process').execSync;
 var path = require('path');
@@ -58,4 +60,3 @@ function getProcessForPort(port) {
 }
 
 module.exports = getProcessForPort;
-

packages/react-dev-utils/openBrowser.js

@@ -7,6 +7,8 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  */
 
+ 'use strict';
+
 var execSync = require('child_process').execSync;
 var opn = require('opn');
 

packages/react-dev-utils/prompt.js

@@ -7,6 +7,8 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  */
 
+'use strict';
+
 var rl = require('readline');
 
 // Convention: "no" should be the conservative choice.

packages/react-dev-utils/webpackHotDevClient.js

@@ -16,6 +16,8 @@
 // that looks similar to our console output. The error overlay is inspired by:
 // https://github.com/glenjamin/webpack-hot-middleware
 
+'use strict';
+
 var ansiHTML = require('ansi-html');
 var SockJS = require('sockjs-client');
 var stripAnsi = require('strip-ansi');
@@ -123,7 +125,7 @@ function showErrorOverlay(message) {
   });
 }
 
-function destroyErrorOverlay() {  
+function destroyErrorOverlay() {
   if (!overlayDiv) {
     // It is not there in the first place.
     return;

tasks/replace-own-deps.js

@@ -8,7 +8,6 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  */
 
-// eslint-disable-next-line
 'use strict';
 
 // Replaces internal dependencies in package.json with local package paths.