added "use strict" to all files that did not have it

js/dom/loading_slider.js

+'use strict';
 
 const showLoadingSlider = () => {
   $('#loading-slider').removeClass('loaded');

js/dom/setup/index.js

+'use strict';
+
 const setupDividers = require('./setup_dividers');
 const setupDocument = require('./setup_document');
 const setupFilesBar = require('./setup_files_bar');
@@ -10,7 +12,7 @@ const setupTopMenu = require('./setup_top_menu');
 const setupWindow = require('./setup_window');
 
 /**
- * Initializes elements once the app loads in the DOM. 
+ * Initializes elements once the app loads in the DOM.
  */
 const setup = () => {
 
@@ -52,4 +54,4 @@ const setup = () => {
 
 module.exports = {
   setup
-};
+};
\ No newline at end of file

js/dom/setup/setup_dividers.js

+'use strict';
+
 const app = require('../../app');
 
 const addDividerToDom = (divider) => {
@@ -96,4 +98,4 @@ module.exports = () => {
   for (let i = 0; i < dividers.length; i++) {
     addDividerToDom(dividers[i]);
   }
-}
+}
\ No newline at end of file

js/dom/setup/setup_document.js

+'use strict';
+
 const app = require('../../app');
 
 module.exports = () => {
@@ -11,4 +13,4 @@ module.exports = () => {
   $(document).mouseup(function (e) {
     app.getTracerManager().command('mouseup', e);
   });
-};
+};
\ No newline at end of file

js/dom/setup/setup_files_bar.js

+'use strict';
+
 const definitelyBigger = (x, y) => x > (y + 2);
 
 module.exports = () => {
@@ -54,4 +56,4 @@ module.exports = () => {
     $('.files_bar > .btn-left').attr('disabled', !lefter);
     $('.files_bar > .btn-right').attr('disabled', !righter);
   });
-}
+}
\ No newline at end of file

js/dom/setup/setup_interval.js

+'use strict';
+
 const app = require('../../app');
 const Toast = require('../toast');
 
@@ -47,4 +49,4 @@ module.exports = () => {
     tracerManager.interval = seconds * 1000;
     Toast.showInfoToast(message);
   });
-};
+};
\ No newline at end of file

js/dom/setup/setup_module_container.js

+'use strict';
+
 const app = require('../../app');
 
 module.exports = () => {
@@ -15,4 +17,4 @@ module.exports = () => {
   $module_container.on('DOMMouseScroll mousewheel', '.module_wrapper', function(e) {
     app.getTracerManager().findOwner(this).mousewheel(e);
   });
-}
+}
\ No newline at end of file

js/dom/setup/setup_powered_by.js

+'use strict';
+
 module.exports = () => {
   $('#powered-by').click(function() {
     $('#powered-by-list button').toggleClass('collapse');
   });
-};
+};
\ No newline at end of file

js/dom/setup/setup_scratch_paper.js

+'use strict';
+
 const app = require('../../app');
 const Server = require('../../server');
 const showAlgorithm = require('../show_algorithm');
@@ -10,4 +12,4 @@ module.exports = () => {
       showAlgorithm(category, algorithm, data);
     });
   });
-};
+};
\ No newline at end of file

js/dom/setup/setup_side_menu.js

+'use strict';
+
 const app = require('../../app');
 
 let sidemenu_percent;
@@ -22,4 +24,4 @@ module.exports = () => {
 
     app.getTracerManager().resize();
   });
-}
+}
\ No newline at end of file

js/dom/setup/setup_top_menu.js

+'use strict';
+
 const app = require('../../app');
 const Server = require('../../server');
 const Toast = require('../toast');

js/dom/setup/setup_window.js

+'use strict';
+
 const app = require('../../app');
 
 module.exports = function() {
   $(window).resize(function() {
     app.getTracerManager().resize();
   });
-};
+};
\ No newline at end of file

js/module/data/array1d.js

+'use strict';
+
 const Array2D = require('./array2d');
 
 const random = (N, min, max) => {

js/module/data/array2d.js

+'use strict';
+
 const random = (N, M, min, max) => {
   if (!N) N = 10;
   if (!M) M = 10;
@@ -24,4 +26,4 @@ const randomSorted = (N, M, min, max) => {
 module.exports = {
   random,
   randomSorted
-};
+};
\ No newline at end of file

js/module/data/coordinate_system.js

+'use strict';
+
 const random = (N, min, max) => {
   if (!N) N = 7;
   if (!min) min = 1;
@@ -12,4 +14,4 @@ const random = (N, min, max) => {
 
 module.exports = {
   random
-};
+};
\ No newline at end of file

js/module/data/directed_graph.js

+'use strict';
+
 const random = (N, ratio) => {
   if (!N) N = 5;
   if (!ratio) ratio = .3;
@@ -15,4 +17,4 @@ const random = (N, ratio) => {
 
 module.exports = {
   random
-};
+};
\ No newline at end of file

js/module/data/undirected_graph.js

+'use strict';
+
 const random = (N, ratio) => {
   if (!N) N = 5;
   if (!ratio) ratio = .3;
@@ -15,4 +17,4 @@ const random = (N, ratio) => {
 
 module.exports = {
   random
-};
+};
\ No newline at end of file

js/module/data/weighted_directed_graph.js

+'use strict';
+
 const random = (N, ratio, min, max) => {
   if (!N) N = 5;
   if (!ratio) ratio = .3;
@@ -17,4 +19,4 @@ const random = (N, ratio, min, max) => {
 
 module.exports = {
   random
-};
+};
\ No newline at end of file

js/module/data/weighted_undirected_graph.js

+'use strict';
+
 const random = (N, ratio, min, max) => {
   if (!N) N = 5;
   if (!ratio) ratio = .3;
@@ -17,4 +19,4 @@ const random = (N, ratio, min, max) => {
 
 module.exports = {
   random
-};
+};
\ No newline at end of file

js/module/tracer/array1d.js

+'use strict';
+
 const Array2DTracer = require('./array2d');
 
 class Array1DTracer extends Array2DTracer {
@@ -42,4 +44,4 @@ class Array1DTracer extends Array2DTracer {
   }
 }
 
-module.exports = Array1DTracer;
+module.exports = Array1DTracer;
\ No newline at end of file

js/module/tracer/array2d.js

+'use strict';
+
 const Tracer = require('./tracer');
 
 const {
@@ -335,4 +337,4 @@ const initView = (tracer) => {
   tracer.$container.append(tracer.$table);
 };
 
-module.exports = Array2DTracer;
+module.exports = Array2DTracer;
\ No newline at end of file

js/module/tracer/chart.js

+'use strict';
+
 const Tracer = require('./tracer');
 
 class ChartTracer extends Tracer {
@@ -135,4 +137,4 @@ const initView = (tracer) => {
   });
 };
 
-module.exports = ChartTracer;
+module.exports = ChartTracer;
\ No newline at end of file

js/module/tracer/coordinate_system.js

+'use strict';
+
 const DirectedGraphTracer = require('./directed_graph');
 
 class CoordinateSystemTracer extends DirectedGraphTracer {
@@ -137,4 +139,4 @@ const initView = (tracer) => {
   });
 };
 
-module.exports = CoordinateSystemTracer;
+module.exports = CoordinateSystemTracer;
\ No newline at end of file

js/module/tracer/directed_graph.js

+'use strict';
+
 const Tracer = require('./tracer');
 
 const {
@@ -398,4 +400,4 @@ sigma.canvas.edges.arrow = function (edge, source, target, context, settings) {
   }
 };
 
-module.exports = DirectedGraphTracer;
+module.exports = DirectedGraphTracer;
\ No newline at end of file

js/module/tracer/log.js

+'use strict';
+
 const Tracer = require('./tracer');
 
 class LogTracer extends Tracer {
@@ -53,4 +55,4 @@ const initView = (tracer) => {
   tracer.$container.append(tracer.$wrapper);
 };
 
-module.exports = LogTracer;
+module.exports = LogTracer;
\ No newline at end of file

js/module/tracer/tracer.js

+'use strict';
+
 const app = require('../../app');
 
 const {
@@ -9,7 +11,7 @@ class Tracer {
   static getClassName() {
     return 'Tracer';
   }
-  
+
   constructor(name) {
     this.module = this.constructor;
 
@@ -105,4 +107,4 @@ class Tracer {
   }
 }
 
-module.exports = Tracer;
+module.exports = Tracer;
\ No newline at end of file

js/module/tracer/undirected_graph.js

+'use strict';
+
 const DirectedGraphTracer = require('./directed_graph');
 
 class UndirectedGraphTracer extends DirectedGraphTracer {
@@ -80,4 +82,4 @@ const initView = (tracer) => {
   });
 };
 
-module.exports = UndirectedGraphTracer;
+module.exports = UndirectedGraphTracer;
\ No newline at end of file

js/module/tracer/weighted_directed_graph.js

+'use strict';
+
 const DirectedGraphTracer = require('./directed_graph');
 
 const {
@@ -193,4 +195,4 @@ const initView = (tracer) => {
   });
 };
 
-module.exports = WeightedDirectedGraphTracer;
+module.exports = WeightedDirectedGraphTracer;
\ No newline at end of file

js/module/tracer/weighted_undirected_graph.js

+'use strict';
+
 const WeightedDirectedGraphTracer = require('./weighted_directed_graph');
 const UndirectedGraphTracer = require('./undirected_graph');
 
@@ -46,4 +48,4 @@ const initView = (tracer) => {
   });
 };
 
-module.exports = WeightedUndirectedGraphTracer;
+module.exports = WeightedUndirectedGraphTracer;
\ No newline at end of file

js/tracer_manager/util/from_json.js

+'use strict';
+
 const {
   parse
 } = JSON;
@@ -8,4 +10,4 @@ const fromJSON = (obj) => {
   });
 };
 
-module.exports = fromJSON;
+module.exports = fromJSON;
\ No newline at end of file

js/tracer_manager/util/index.js

+'use strict';
+
 const toJSON = require('./to_json');
 const fromJSON = require('./from_json');
 const refineByType = require('./refine_by_type');
@@ -6,4 +8,4 @@ module.exports = {
   toJSON,
   fromJSON,
   refineByType
-};
+};
\ No newline at end of file

js/tracer_manager/util/refine_by_type.js

+'use strict';
+
 const refineByType = (item) => {
   switch (typeof(item)) {
     case 'number':

js/tracer_manager/util/to_json.js

+'use strict';
+
 const {
   stringify
 } = JSON;
@@ -8,4 +10,4 @@ const toJSON = (obj) => {
   });
 };
 
-module.exports = toJSON;
+module.exports = toJSON;
\ No newline at end of file