sindresorhus

#!/usr/bin/env bash
# MIT © Sindre Sorhus - sindresorhus.com

# git hook to run a command after `git pull` if a specified file was changed
# Run `chmod +x post-merge` to make it executable then put it into `.git/hooks/`.

changed_files="$(git diff-tree -r --name-only --no-commit-id ORIG_HEAD HEAD)"

check_run() {
	echo "$changed_files" | grep --quiet "$1" && eval "$2"

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

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:

gleuch

// selection range
var range = window.getSelection().getRangeAt(0);

// plain text of selected range (if you want it w/o html)
var text = window.getSelection();
    
// document fragment with html for selection
var fragment = range.cloneContents();

// make new element, insert document fragment, then get innerHTML!

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

ydaniv

// polyfill window.getMatchedCSSRules() in FireFox 6+
if ( typeof window.getMatchedCSSRules !== 'function' ) {
    var ELEMENT_RE = /[\w-]+/g,
            ID_RE = /#[\w-]+/g,
            CLASS_RE = /\.[\w-]+/g,
            ATTR_RE = /\[[^\]]+\]/g,
            // :not() pseudo-class does not add to specificity, but its content does as if it was outside it
            PSEUDO_CLASSES_RE = /\:(?!not)[\w-]+(\(.*\))?/g,
            PSEUDO_ELEMENTS_RE = /\:\:?(after|before|first-letter|first-line|selection)/g;
        // convert an array-like object to array

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);
	});

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) {

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"');

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`.