Add gulp config for js

gulpfile.js

@@ -1,38 +1,48 @@
-var gulp         = require('gulp');
-var browserSync  = require('browser-sync').create();
-var sass         = require('gulp-sass');
-var autoprefixer = require('gulp-autoprefixer');
-var cachebust    = require('gulp-cache-bust');
-var reload       = browserSync.reload;
+var gulp = require('gulp')
+var browserSync = require('browser-sync').create()
+var sass = require('gulp-sass')
+var autoprefixer = require('gulp-autoprefixer')
+var cachebust = require('gulp-cache-bust')
+var reload = browserSync.reload
 
 gulp.task('sass', function() {
-  return gulp.src('src/scss/styles.scss')
+  return gulp
+    .src('src/scss/styles.scss')
     .pipe(sass().on('error', sass.logError))
     .pipe(autoprefixer())
     .pipe(gulp.dest('dest/css'))
-    .pipe(reload({stream: true}))
-});
+    .pipe(reload({ stream: true }))
+})
 
 gulp.task('html', function() {
-  return gulp.src('./src/**/*.html')
-    .pipe(cachebust({type: 'timestamp'}))
+  return gulp
+    .src('./src/**/*.html')
+    .pipe(cachebust({ type: 'timestamp' }))
     .pipe(gulp.dest('dest'))
-    .pipe(reload({stream: true}))
-});
+    .pipe(reload({ stream: true }))
+})
+
+gulp.task('js', function() {
+  return gulp
+    .src('./src/**/*.js')
+    .pipe(cachebust({ type: 'timestamp' }))
+    .pipe(gulp.dest('dest'))
+    .pipe(reload({ stream: true }))
+})
 
 gulp.task('assets', function() {
-  return gulp.src('./src/assets/**/*')
-    .pipe(gulp.dest('dest/assets'))
-});
+  return gulp.src('./src/assets/**/*').pipe(gulp.dest('dest/assets'))
+})
 
 gulp.task('serve', function() {
   browserSync.init({
-    server: "./dest",
-    notify: false
-  });
+    server: './dest',
+    notify: false,
+  })
 
   gulp.watch('src/**/*.html', gulp.series('html'))
+  gulp.watch('src/**/*.js', gulp.series('js'))
   gulp.watch('src/scss/**/*.scss', gulp.series('sass'))
-});
+})
 
-gulp.task('default', gulp.series('html', 'sass', 'assets', 'serve'));
+gulp.task('default', gulp.series('html', 'js', 'sass', 'assets', 'serve'))