branneman

Better local require() paths for Node.js

Problem

When the directory structure of your Node.js application (not library!) has some depth, you end up with a lot of annoying relative paths in your require calls like:

var Article = require('../../../models/article');

Those suck for maintenance and they're ugly.

Possible solutions

branneman

/**
 * Parent
 */
function Shape(x, y) {
    this.x = x;
    this.y = y;
}
Shape.prototype.constructor = Shape;
Shape.prototype.pos = function() {
    return [this.x, this.y];

branneman

const stat = require('fs').statSync;
const AdmZip = require('adm-zip');

/**
 * Example usage
 */
newArchive(`test-${+new Date}.zip`, [
    'index.js',
    'package.json',
    'node_modules'

branneman

// Factory
var encrypterFactory = function(config) {
    var encrypter = eval('new Encrypt' + config.algorithm.toUpperCase());
    if (typeof encrypter.encrypt !== 'function') {
        throw new Error(encrypter.constructor.name + ' must implement the `encrypt` method!');
    }
    return encrypter;
};

// Implementations

branneman

//
// SVG — hasClass, addClass, removeClass, toggleClass
//  Source:
//   https://gist.github.com/branneman/8436956
//  Taken and adapted from:
//   http://toddmotto.com/hacking-svg-traversing-with-ease-addclass-removeclass-toggleclass-functions/
//

if (SVGElement && SVGElement.prototype) {

branneman

/**
 * Globals
 */
var Carrousel = function(elem) { this.init() };
Carrousel.prototype = { init: function() {} };
new Carrousel();

/**
 * Namespacing
 *  - No globals (only the namespace variable itself is global)

branneman

// FP Lenses
const lens = get => set => ({ get, set });
const view = lens => obj => lens.get(obj);
const set = lens => val => obj => lens.set(val)(obj);
const over = lens => fn => obj => set(lens)(fn(view(lens)(obj)))(obj);
const lensProp = key => lens(prop(key))(assoc(key));

branneman

var net = require('net');

//
// Client
//

function openSocket() {
    var socket = net.connect(3e3);
    socket.setKeepAlive(true);
    socket.on('connect', onConnect.bind({}, socket));

branneman

/**
 * @param {Event} evt
 * @return {Object}
 */
function getMousePosition(evt) {

  var pageX = evt.pageX;
  var pageY = evt.pageY;
  if (pageX === undefined) {
    pageX = evt.clientX + document.body.scrollLeft + document.documentElement.scrollLeft;

branneman

const crypto = require('crypto')
const { promisify } = require('util')
const pbkdf2 = promisify(crypto.pbkdf2)

module.exports = { createHashPasswordFn, isPasswordCorrect }

/**
 * @typedef {Object} HashPassword
 * @property {String} hash
 * @property {String} salt