Gulp To Create One Javascript File to Speed Up Your Production Server

'use strick';

var gulp = require('gulp'),
    concat = require('gulp-concat'),
    uglify = require('gulp-uglify'),
    rename = require('gulp-rename');

gulp.task("concatScripts", function(){
 //combine all these scripts
 gulp.src([
  'js/jquery.js', 
  'js/sticky/jquery.stick.js', 
  'js/main.js'])
 //create file
 .pipe(concat("app.js"))
 // put in folder destination
 .pipe(gulp.dest("js"));

});

gulp.task("minify", function(){
 gulp.src("js/app.js")
  .pipe(uglify())
  .pipe(rename("app.min.js"))
  .pipe(gulp.dest("js"));

});

gulp.task("default", ["hello"], function(){
 console.log("this is the default task");
});