Use Javascript strict mode

background.js

 /* global chrome */
+'use strict';
 
 chrome.browserAction.onClicked.addListener(function (tab) {
   chrome.storage.sync.set({ 'chrome-app-sync': true });

nightwatch.js

 'use strict'
+
 var TRAVIS_JOB_NUMBER = process.env.TRAVIS_JOB_NUMBER
 
 module.exports = {

src/app.js

 /* global alert, confirm, prompt, Option, Worker */
+'use strict';
 
 var $ = require('jquery');
 var semver = require('semver');

src/app/compiler-worker.js

+'use strict';
+
 var solc = require('solc/wrapper');
 
 var compileJSON = function () { return ''; };

src/app/compiler.js

+'use strict';
+
 var solc = require('solc/wrapper');
 
 var webworkify = require('webworkify');

src/app/debugger.js

+'use strict';
+
 var remix = require('ethereum-remix');
 var utils = require('./utils');
 var ace = require('brace');

src/app/editor.js

 /* global BALLOT_EXAMPLE, FileReader */
+'use strict';
 
 var utils = require('./utils');
 

src/app/execution-context.js

 /* global confirm */
+'use strict';
 
 var $ = require('jquery');
 var Web3 = require('web3');

src/app/formalVerification.js

+'use strict';
+
 var $ = require('jquery');
 var EventManager = require('../lib/eventManager');
 

src/app/gist-handler.js

+'use strict';
+
 // Allowing window to be overriden for testing
 function GistHandler (_window) {
   if (_window === undefined) _window = window;

src/app/query-params.js

+'use strict';
+
 // Allowing window to be overriden for testing
 function QueryParams (_window) {
   if (_window === undefined) _window = window;

src/app/renderer.js

+'use strict';
+
 var $ = require('jquery');
 
 var utils = require('./utils');

src/app/storage.js

 /* global chrome, confirm */
+'use strict';
 
 var utils = require('./utils');
 

src/app/ui-helper.js

+'use strict';
+
 var $ = require('jquery');
 
 module.exports = {

src/app/utils.js

+'use strict';
+
 var SOL_CACHE_FILE_PREFIX = 'sol-cache-file-';
 
 function getCacheFilePrefix () {

src/index.js

+'use strict';
+
 require('es6-shim');
 var app = require('./app.js');
 var $ = require('jquery');

src/lib/eventManager.js

 'use strict';
+
 function eventManager () {
   this.registered = {};
 }

src/universal-dapp.js

 /* global prompt */
+'use strict';
 
 var $ = require('jquery');
 var ethJSUtil = require('ethereumjs-util');

test-browser/debugger.js

+'use strict';
+
 module.exports = {
   'Debugger Render': function (browser) {
     browser

test-browser/new-file-test.js

+'use strict';
+
 module.exports = {
   'New file test': function (browser) {
     browser

test-browser/smoke-test.js

+'use strict';
+
 module.exports = {
   'Smoke test': function (browser) {
     browser

test/compiler-test.js

+'use strict';
+
 var test = require('tape');
 
 var Compiler = require('../src/app/compiler');

test/gist-handler-test.js

+'use strict';
+
 var test = require('tape');
 
 var GistHandler = require('../src/app/gist-handler');

test/index.js

+'use strict';
+
 require('./compiler-test');
 require('./gist-handler-test');
 require('./query-params-test');

test/query-params-test.js

+'use strict';
+
 var test = require('tape');
 
 var QueryParams = require('../src/app/query-params');