Gulpfile.js

/* eslint import/no-extraneous-dependencies: ["error", {"devDependencies": true}] */

const babel = require("gulp-babel");
const browserify = require("browserify");
const gulp = require("gulp");
const rename = require("gulp-rename");
const source = require("vinyl-source-stream");
const uglify = require("gulp-uglify");

/**
 * Prepares the files for browser usage
 *
 *  - Bundle with browserify
 *  - Transpile with Babel
 *  - Minify with uglify
 */
gulp.task("build", ["bundle"], () => {
  gulp
    .src("./dist/dijkstra.js")
    .pipe(babel())
    .pipe(gulp.dest("./dist"))
    .pipe(uglify())
    .pipe(rename({ suffix: ".min" }))
    .pipe(gulp.dest("./dist"));
});

gulp.task("bundle", () => {
  const b = browserify({ entries: "./libs/Graph.js" });

  return b.bundle().pipe(source("dijkstra.js")).pipe(gulp.dest("./dist"));
});