diff --git a/gulp/libs/error-handler.js b/gulp/libs/error-handler.js
index 14d3f9a..44a2170 100644
--- a/gulp/libs/error-handler.js
+++ b/gulp/libs/error-handler.js
@@ -1,7 +1,7 @@
-const gutil = require('./utils');
 const notifier = require('node-notifier');
+const gutil = require('./utils');
 
-module.exports = function (errObj) {
+module.exports = (errObj) => {
     let message = gutil.colors.red('Error');
 
     if ('plugin' in errObj) {
diff --git a/gulp/tasks/copy.js b/gulp/tasks/copy.js
index e56f2bd..e5df890 100644
--- a/gulp/tasks/copy.js
+++ b/gulp/tasks/copy.js
@@ -3,7 +3,6 @@
  */
 
 module.exports = (gulp, globalConfig) => {
-
     const taskConfig = {
         watch: [
             `${globalConfig.srcDir}/*.*` // Only copy top-level files
diff --git a/gulp/tasks/images.js b/gulp/tasks/images.js
index ce7cf40..8a10b36 100644
--- a/gulp/tasks/images.js
+++ b/gulp/tasks/images.js
@@ -1,15 +1,11 @@
 /**
  * Compress images.
- *
- * Install:
- * yarn add -D gulp-imagemin gul-newer
  */
 
 const imagemin = require('gulp-imagemin');
 const newer = require('gulp-newer');
 
 module.exports = (gulp, globalConfig) => {
-
     const taskConfig = {
         watch: [`${globalConfig.srcDir}/images/**/*`]
     };
diff --git a/gulp/tasks/scripts.js b/gulp/tasks/scripts.js
index cbac9fc..d0f40f1 100644
--- a/gulp/tasks/scripts.js
+++ b/gulp/tasks/scripts.js
@@ -1,12 +1,8 @@
 /**
  * Parse and minify JavaScript
- *
- * Install:
- * yarn add -D babel-preset-es2015 babelify gulp-eslint gulp-if vinyl-source-stream browserify vinyl-buffer gulp-uglify gulp-sourcemaps
  */
 
 const eslint = require('gulp-eslint');
-const eslintOptions = require('../../.eslintrc.js');
 const gulpif = require('gulp-if');
 const source = require('vinyl-source-stream');
 const browserify = require('browserify');
@@ -14,16 +10,18 @@ const uglify = require('gulp-uglify');
 const sourcemaps = require('gulp-sourcemaps');
 const buffer = require('vinyl-buffer');
 const errorHandler = require('../libs/error-handler');
+const eslintOptions = require('../../.eslintrc.js');
 
 module.exports = (gulp, globalConfig) => {
-
     const taskConfig = {
         watch: [`${globalConfig.srcDir}/js/**/*`]
     };
 
     gulp.task('scripts-lint', () => {
-        taskConfig.watch.push('gulpfile.js');
-        taskConfig.watch.push('tasks/*.js');
+        if (globalConfig.dev) {
+            taskConfig.watch.push('*.js');
+            taskConfig.watch.push('gulp/**/*.js');
+        }
 
         return gulp.src(taskConfig.watch)
             .pipe(eslint(eslintOptions))
@@ -44,7 +42,7 @@ module.exports = (gulp, globalConfig) => {
             .pipe(source('main.js'))
             .pipe(buffer())
             .pipe(gulpif(globalConfig.dev, sourcemaps.init({
-                loadMaps: true // loads map from browserify file
+                loadMaps: true // Loads map from browserify file
             })))
             .pipe(uglify(gulpif(globalConfig.dev, {
                 mangle: false,
diff --git a/gulp/tasks/sprites.js b/gulp/tasks/sprites.js
index 170df99..02e8a8a 100644
--- a/gulp/tasks/sprites.js
+++ b/gulp/tasks/sprites.js
@@ -1,30 +1,30 @@
 /**
  * Create sprites of images.
- *
- * Install:
- * yarn add -D gulp.spritesmith gulp-imagemin vinyl-buffer glob path fs
  */
 
 const spritesmith = require('gulp.spritesmith');
 const buffer = require('vinyl-buffer');
 const imagemin = require('gulp-imagemin');
-const errorHandler = require('../libs/error-handler');
 const path = require('path');
 const glob = require('glob');
 const fs = require('fs');
+const errorHandler = require('../libs/error-handler');
 
 module.exports = (gulp, globalConfig) => {
-
     const taskConfig = {
         watch: [`${globalConfig.srcDir}/images/sprites/*/*.png`]
     };
 
     gulp.task('sprites', (done) => {
         glob(`${globalConfig.srcDir}/images/sprites/*`, {}, (err, nodesList) => {
+            if (err) {
+                errorHandler(err.stack);
+                return;
+            }
 
             const spritesDirs = [];
 
-            for (let i = 0, len = nodesList.length; i < len; i++) {
+            for (let i = 0, len = nodesList.length; i < len; i += 1) {
                 const nodePath = nodesList[i];
                 const isDir = fs.statSync(nodePath).isDirectory();
 
@@ -38,6 +38,12 @@ module.exports = (gulp, globalConfig) => {
             const numSprites = spritesDirs.length;
             let workDone = 0;
 
+            /**
+             * Helps to identify when the task is done by counting if
+             * all the sprites are done.
+             *
+             * @return {null}
+             */
             const checkFinish = () => {
                 workDone += 0.5;
 
@@ -46,7 +52,7 @@ module.exports = (gulp, globalConfig) => {
                 }
             };
 
-            for (let i = 0; i < numSprites; i++) {
+            for (let i = 0; i < numSprites; i += 49) {
                 const dir = spritesDirs[i];
                 const name = path.basename(dir);
 
@@ -55,7 +61,7 @@ module.exports = (gulp, globalConfig) => {
                         imgName: `${name}.png`,
                         cssName: `${name}.scss`,
                         cssSpritesheetName: name,
-                        cssVarMap: function (sprite) {
+                        cssVarMap: (sprite) => {
                             sprite.name = `${name}-image-${sprite.name}`;
                         },
                         cssOpts: {
diff --git a/gulp/tasks/styles.js b/gulp/tasks/styles.js
index b644e1c..9bf44d9 100644
--- a/gulp/tasks/styles.js
+++ b/gulp/tasks/styles.js
@@ -1,8 +1,5 @@
 /**
  * Parse and minify JavaScript
- *
- * Install:
- * yarn add -D gulp-sass-lint gulp-sass gulp-if gulp-sourcemaps gulp-postcss cssnano autoprefixer
  */
 
 const sassLint = require('gulp-sass-lint');
@@ -15,7 +12,6 @@ const autoprefixer = require('autoprefixer');
 const errorHandler = require('../libs/error-handler');
 
 module.exports = (gulp, globalConfig) => {
-
     const taskConfig = {
         watch: [`${globalConfig.srcDir}/css/**/*`]
     };
@@ -51,7 +47,6 @@ module.exports = (gulp, globalConfig) => {
             .pipe(postcss(postcssPlugins))
             .pipe(gulpif(globalConfig.dev, sourcemaps.write('./')))
             .pipe(gulp.dest(`${globalConfig.destDir}/css/`));
-
     });
 
     return taskConfig;
diff --git a/gulp/tasks/views.js b/gulp/tasks/views.js
index 7957fd0..b679c16 100644
--- a/gulp/tasks/views.js
+++ b/gulp/tasks/views.js
@@ -1,16 +1,12 @@
 /**
  * Compress images.
- *
- * Install:
- * yarn add -D gulp-pug
  */
 
 const pug = require('gulp-pug');
-const errorHandler = require('../libs/error-handler');
 const htmlmin = require('gulp-htmlmin');
+const errorHandler = require('../libs/error-handler');
 
 module.exports = (gulp, globalConfig) => {
-
     const taskConfig = {
         watch: [
             `${globalConfig.srcDir}/views/**/*`
@@ -30,5 +26,3 @@ module.exports = (gulp, globalConfig) => {
 
     return taskConfig;
 };
-
-
diff --git a/gulpfile.js b/gulpfile.js
index 35bb1c7..f9f66eb 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -1,13 +1,8 @@
-/**
- * Install
- * yarn add -D gulp gulp-util run-sequence del browser-sync
- */
-
 const gulp = require('gulp');
-const gutil = require('./gulp/libs/utils');
 const runSequence = require('run-sequence');
 const del = require('del');
 const browserSync = require('browser-sync').create();
+const gutil = require('./gulp/libs/utils');
 
 const config = {
     dev: gutil.env.dev === true,
@@ -39,10 +34,9 @@ gulp.task('clean', () => {
 
 /* istanbul ignore next */
 gulp.task('build', ['clean'], (done) => {
-
     tasksSequence.push(done);
 
-    runSequence.apply(null, tasksSequence);
+    runSequence(...tasksSequence);
 });
 
 /* istanbul ignore next */
@@ -58,7 +52,7 @@ gulp.task('serve', ['build'], () => {
         notify: false
     });
 
-    for (let i = 0, len = tasksConfigList.length; i < len; i++) {
+    for (let i = 0, len = tasksConfigList.length; i < len; i += 1) {
         const task = tasksConfigList[i];
 
         gulp.watch(task.watch, [task.name, browserSync.reload]);
@@ -75,7 +69,7 @@ gulp.task('default', () => {
  */
 const tasksConfigList = [];
 
-for (let i = 0, len = tasksSequence.length; i < len; i++) {
+for (let i = 0, len = tasksSequence.length; i < len; i += 1) {
     const taskName = tasksSequence[i];
     const taskConfig = require(`./gulp/tasks/${taskName}`)(gulp, config);
 
@@ -85,6 +79,6 @@ for (let i = 0, len = tasksSequence.length; i < len; i++) {
 }
 
 module.exports = {
-    gulp: gulp,
-    config: config
+    gulp,
+    config
 };