nolanlawson

// Promise.all is good for executing many promises at once
Promise.all([
  promise1,
  promise2
]);

// Promise.resolve is good for wrapping synchronous code
Promise.resolve().then(function () {
  if (somethingIsNotRight()) {
    throw new Error("I will be rejected asynchronously!");

gaearon

function mapValues(obj, fn) {
  return Object.keys(obj).reduce((result, key) => {
    result[key] = fn(obj[key], key);
    return result;
  }, {});
}

function pick(obj, fn) {
  return Object.keys(obj).reduce((result, key) => {
    if (fn(obj[key])) {

luciopaiva

Full socket.io client and server example

Last updated: 2021-02-21, tested with socket.io v3.1.1

This is the simplest implementation you will find for a client/server WebSockets architecture using socket.io.

To see a full explanation, read my answer on SO here: https://stackoverflow.com/a/24232050/778272.

If you're looking for examples using frameworks, check these links:

jevakallio

SSR History & Colour

• Three React approaches
  • SPA Single Page Applications
  • SSR Server Side Rendering
  • SSG Static Site Generation

  • SPA - Single Page Applications :: fat client, API
    • Send plain javascript that does on everything on client
    • SEO nightmare
• Google Crawler is starting to execute JavaScript

alejolp

public static boolean isElementPresentSorted(int[] m, int elem) {
    // BINARY SEARCH
    int first = 0, last = m.length - 1;
    while (first <= last) {
        int middle = first + (last - first) / 2;
        if (m[middle] == elem) {
            return true;
        } else if (m[middle] < elem) {
            first = middle + 1;
        } else {