JS sketches

gistfile1.txt

// check that event.target is the one that we need
var isNavbarToogle = event.target.path.filter(function(item) {
  return (item.classList.contains("navbar-toggle") || item.classList.contains("navbar-header"));
}).length == 2;

// to know when gulp task is end
Gulp.task("name", function () {
  console.log('started >>>');
  return .....
    .pipe(Gulp.dest("build"))
    .on("end", () => {
      console.log('ended >>>');
    });
});

// remove empty values and dups from the array
let list = ["", "", "a", "b", "a", "", "c", "bb", "d", "", "bb"];
list = list.filter((item, key) => item ? item && list.indexOf(item) == key : false);
console.log('expect: [ "a", "b", "c", "bb", "d" ]');
console.log('list  :', list);