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---
__________Final Gulp set-up_________
var gulp = require('gulp');

// Now that we've installed the uglify package we can require it:
var uglify = require('gulp-uglify'),
    rename = require('gulp-rename'),
    browserSync = require('browser-sync'),
    eslint = require('gulp-eslint'),
    sass = require('gulp-sass'),
    autoprefixer = require('gulp-autoprefixer'),
    cssnano = require('gulp-cssnano'),
    prettyError = require('gulp-prettyerror');

gulp.task('sass', function() {
   gulp.src('./sass/style.scss')
      .pipe(prettyError()) //error handling
      .pipe(sass())
      .pipe(autoprefixer({
         browsers: ['last 2 versions']
      }))
      .pipe(gulp.dest('./build/css'))
      .pipe(cssnano())
      .pipe(rename('style.min.css'))
      .pipe(gulp.dest('./build/css'));
});

gulp.task('scripts', ['eslint'], function(){
  gulp.src('./js/*.js') // What files do we want gulp to consume?
    .pipe(uglify()) // Call the uglify function on these files
    .pipe(rename({ extname: '.min.js' })) // Rename the uglified file
    .pipe(gulp.dest('./build/js')) // Where do we put the result?
});

gulp.task('eslint', function() {
  return gulp.src(['./js/*.js'])
  .pipe(eslint())
  .pipe(eslint.format())
  .pipe(eslint.failAfterError());
});

gulp.task('watch', function() {
  gulp.watch('sass/*.scss', ['sass']);
  gulp.watch('js/*.js', ['scripts']);
});

gulp.task('browser-sync', function() {
  browserSync.init({
    server: {
      baseDir: "./"
    }
  });
    gulp.watch(['*.html', 'build/css/*.css', 'build/js/*.js']).on('change', browserSync.reload);
  });

  gulp.task('default', ['watch', 'browser-sync', 'eslint']);

---
___________first gulp below
var gulp = require('gulp'); // Load Gulp!
// Now that we've installed the uglify package we can require it:
var uglify = require('gulp-uglify'),
    rename = require('gulp-rename');
    
gulp.task('default', function(){
  gulp.src('./js/*.js') // What files do we want gulp to consume?
    .pipe(uglify()) // Call the uglify function on these files
    .pipe(rename({ extname: '.min.js' })) // Rename the uglified file
    .pipe(gulp.dest('./build/js')) // Where do we put the result?
});

___________
var gulp = require('gulp'); // Load Gulp!
// Now that we've installed the uglify package we can require it:
var uglify = require('gulp-uglify'),
    rename = require('gulp-rename');

gulp.task('scripts', function(){
  gulp.src('./js/*.js') // What files do we want gulp to consume?
    .pipe(uglify()) // Call the uglify function on these files
    .pipe(rename({ extname: '.min.js' })) // Rename the uglified file
    .pipe(gulp.dest('./build/js')) // Where do we put the result?
});

gulp.task('say_hello', function() {
  console.log('Hello!');
});

//Modify our default task method by passing an array of task names
gulp.task('default', ['scripts', 'say_hello']);


________

var gulp = require('gulp');

// Now that we've installed the uglify package we can require it:
var uglify = require('gulp-uglify'),
    rename = require('gulp-rename'),
    browserSync = require('browser-sync');

gulp.task('scripts', function(){
  gulp.src('./js/*.js') // What files do we want gulp to consume?
    .pipe(uglify()) // Call the uglify function on these files
    .pipe(rename({ extname: '.min.js' })) // Rename the uglified file
    .pipe(gulp.dest('./build/js')) // Where do we put the result?
});

gulp.task('watch', function() {
  gulp.watch('js/*.js', ['scripts']);
});

gulp.task('browser-sync', function() {
  browserSync.init({
    server: {
      baseDir: "./"
    }
  });
    gulp.watch(['*.html', 'build/css/*.css', 'build/js/*.js']).on('change', browserSync.reload);
  });


//Modify our default task method by passing an array of task names
gulp.task('default', ['watch', 'browser-sync']);

____eslint / browserSyn / Watch / scripts________
var gulp = require('gulp');

// Now that we've installed the uglify package we can require it:
var uglify = require('gulp-uglify'),
    rename = require('gulp-rename'),
    browserSync = require('browser-sync'),
    eslint = require('gulp-eslint');

gulp.task('scripts', ['lint'], function(){
  gulp.src('./js/*.js') // What files do we want gulp to consume?
    .pipe(uglify()) // Call the uglify function on these files
    .pipe(rename({ extname: '.min.js' })) // Rename the uglified file
    .pipe(gulp.dest('./build/js')) // Where do we put the result?
});

gulp.task('lint', function() {
    // ESLint ignores files with "node_modules" paths. 
    // So, it's best to have gulp ignore the directory as well. 
    // Also, Be sure to return the stream from the task; 
    // Otherwise, the task may end before the stream has finished. 
  return gulp.src(['./js/*.js','!node_modules/**'])
  .pipe(eslint())
    // eslint.format() outputs the lint results to the console. 
   // Alternatively use eslint.formatEach() (see Docs). 
  .pipe(eslint.format())
   // To have the process exit with an error code (1) on 
   // lint error, return the stream and pipe to failAfterError last. 
  .pipe(eslint.failAfterError());
});

gulp.task('watch', function() {
  gulp.watch('js/*.js', ['scripts']);
});

gulp.task('browser-sync', function() {
  browserSync.init({
    server: {
      baseDir: "./"
    }
  });
    gulp.watch(['*.html', 'build/css/*.css', 'build/js/*.js']).on('change', browserSync.reload);
  });

//Modify our default task method by passing an array of task names
gulp.task('default', ['watch', 'browser-sync', 'eslint']);