kfox

TCP echo server for Node.js

Usage

1. Make sure you have a modern-ish version of Node.js installed.
2. Type npx https://gist.github.com/kfox/1280c2f0ee8324067dba15300e0f2fd3
3. Connect to it from a client, e.g. netcat or similar: nc localhost 9000

ryanflorence

import React from "react";
import { Link } from "react-router-dom";

export function createResource(getPromise) {
  let cache = {};
  let inflight = {};
  let errors = {};

  function load(key) {
    inflight[key] = getPromise(key)

eyecatchup

var sendError = function (err) {
    console.log('Caught JS client error:');
    console.dir(err);

    var xhr = new XMLHttpRequest();
    xhr.open('POST', '/api/error/add', true);
    xhr.setRequestHeader('Content-type', 'application/json; charset=utf-8');
    xhr.send(JSON.stringify(err));
};

loganvolkers

Custom format for displaying bytes as kb, mb, gb or tb.

Response to a few places on the internet: https://productforums.google.com/forum/#!topic/docs/x_T_N-yRUYg And here: https://stackoverflow.com/questions/1533811/how-can-i-format-bytes-a-cell-in-excel-as-kb-mb-gb-etc

Here is one that I have been using:

[<1000000]0.00," KB";[<1000000000]0.00,," MB";0.00,,," GB"

ole-boss

SELECT
  first_sessions.sid                                                               AS sessionId,
  visitorId,
  first_transactions.transactionId                                                 AS transactionId,
  timestamp,
  deviceCategory,
  landingPage,
  pageviews,
  timeOnSite,
  channel,

the0neWhoKnocks

Jest Testing Examples

• Common Use Cases
  • Testing a function was called with a specific Object property
  • Testing a function was called with a bound callback
  • Setting props on window.location
  • Working with History
  • Time travel
  • Testing exceptions
• Check if an Object contains multiple keys

bnoordhuis

// Copyright (c) 2017, Ben Noordhuis <info@bnoordhuis.nl>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

RatulSaha

SELECT
  SUM(fcp.density)
FROM
  `chrome-ux-report.chrome_ux_report.201710`,
  UNNEST(first_contentful_paint.histogram.bin) AS fcp
WHERE
  origin = "https://www.google.co.in"
  AND effective_connection_type.name = "3G"
  AND fcp.END <= 1000

ncochard

When you create a npm package, remember it might be used in a browser or a server, or even a command line utility… For each package you create, please pay attention at what it will be used for:

1. Is it going to be used as a dependency to a nodejs application that is not bundled? (e.g. command line utilities)
2. Is it going to be used as a dependency to a nodejs application that is bundled? (e.g. AWS Lambdas)
3. Is it going to be used as a dependency to a browser application (always bundled)?.

• In cases 2) and 3) you want to allow for tree shaking.
• In cases 1) and 2) you want to benefit from the "ES6"/"ES next" features supported natively by nodejs.
• In case 3) you also want to benefit from the native support of "ES6" from your browser.

rproenca

window.Clipboard = (function(window, document, navigator) {
    var textArea,
        copy;

    function isOS() {
        return navigator.userAgent.match(/ipad|iphone/i);
    }

    function createTextArea(text) {
        textArea = document.createElement('textArea');