joemaller

Finding this took me longer than it should have, probably because I was impatiently looking for "timeststamp" instead of "milliseconds of the Unix epoch". For future searchers, Luxon uses the methods DateTime.fromMillis and DateTime.valueOf.

// Create a Luxon DateTime from a JS Unix timestamp
const ts = new Date().getTime();     // 1516717417146
const dt = DateTime.fromMillis(ts);  // { ts: 2018-01-23T09:23:37.146-05:00 ...
console.log(dt.valueOf());           // 1516717417146

LachlanArthur

JS Sprintf

Simple sprintf in JS using Tagged Template Literals

sprintf`There are ${0} monkeys in the ${1}.`( '10', 'tree' );
// > There are 10 monkeys in the tree.

const linkTemplate = sprintf`<a href="${0}" ${2}>${1}</a>`;
linkTemplate('/contact/', 'Contact Us');
linkTemplate('https://example.com', 'Open Preview', 'target="_blank"');

antishok

What does NODE_ENV=production do?

Setting NODE_ENV=production causes these libraries and tools to behave as follows:

npm:

• install will not install devDependencies
• shrinkwrap will not install devDependencies
• prune will remove devDependencies

yarn:

idleberg

Open in Atom

• Open Automator
• Create a new Service
• Set “Service receives selected” to files or folders in any application
• Add a Run Shell Script action
• Set the script action to /usr/local/bin/atom -n "$@"
• Set “Pass input” to as arguments
• Save as Open in Atom

harto

'use strict';

describe('mocha before hooks', function () {
	before(() => console.log('*** top-level before()'));
	beforeEach(() => console.log('*** top-level beforeEach()'));
	describe('nesting', function () {
		before(() => console.log('*** nested before()'));
		beforeEach(() => console.log('*** nested beforeEach()'));
		it('is a nested spec', () => true);
	});

nzakas

// target is the backing object
let target = { length: 0 },
    proxy = new Proxy(target, {
        set(trapTarget, key, value) {

            let numericKey = Number(key),
                keyIsInteger = Number.isInteger(numericKey);

            // special case for length property - only need to worry if length is
            // shorter than number of array items

joshnuss

// the main app file
import express from "express";
import loadDb from "./loadDb"; // dummy middleware to load db (sets request.db)
import authenticate from "./authentication"; // middleware for doing authentication
import permit from "./authorization"; // middleware for checking if user's role is permitted to make request

const app = express(),
      api = express.Router();

// first middleware will setup db connection

brettz9

    function jml (elName, atts, children) {'use strict';
        var el = typeof elName === 'string' ? document.createElement(elName) : elName;
        if (atts && Array.isArray(atts)) {
            children = atts;
        }
        else if (atts) {
            Object.keys(atts).forEach(function (att) {
                var attVal = atts[att];
                if (att === '$on') {
                    return Object.keys(attVal).forEach(function (ev) {

gordonbrander

// Microrouter based on history.pushState.
// All thrills, no frills.
// Usage:
//
//     var h = urlstate(callback);
//     h.push('#foo')
function urlstate(callback) {
  // Since `history.pushState` doesn't fire `popstate`, we can use this function
  // instead. Will update history state and call `callback` with currently
  // showing `url`.

woollsta

/**
 * Chunkify
 * Google Chrome Speech Synthesis Chunking Pattern
 * Fixes inconsistencies with speaking long texts in speechUtterance objects 
 * Licensed under the MIT License
 *
 * Peter Woolley and Brett Zamir
 */
 
var speechUtteranceChunker = function (utt, settings, callback) {