gaearon

import React, { Component } from 'react';
import { createStore, combineReducers, applyMiddleware, bindActionCreators } from 'redux';
import { provide, connect } from 'react-redux';
import thunk from 'redux-thunk';

const AVAILABLE_SUBREDDITS = ['apple', 'pics'];

// ------------
// reducers
// ------------

paulirish

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics

• elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

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])) {

btroncone

Comprehensive Introduction to @ngrx/store

By: @BTroncone

Also check out my lesson @ngrx/store in 10 minutes on egghead.io!

Update: Non-middleware examples have been updated to ngrx/store v2. More coming soon!

Table of Contents

btroncone

RxJS 5 Operators By Example

⚠️ UPDATE: I have moved the contents of this gist plus more to http://www.learnrxjs.io and https://github.com/btroncone/learn-rxjs. For expanded examples, explanations, and resources, please check out this new location!

A complete list of RxJS 5 operators with easy to understand explanations and runnable examples.

Table of Contents

• buffer
• bufferCount
• bufferTime

markerikson

// See https://blog.isquaredsoftware.com/presentations/react-redux-ts-intro-2020-12/#/36 for slides
// My basic render function structure:
function RenderLogicExample({
  someBoolean, // 1) Destructure values from `props` object
  someList,
}) {
  // 2) Declare state values
  const [a, setA] = useState(0);
  const [b, setB] = useState(0);

jonathantneal

javascript: (function () {
    function c() {
        var e = document.createElement("link");
        e.setAttribute("type", "text/css");
        e.setAttribute("rel", "stylesheet");
        e.setAttribute("href", f);
        e.setAttribute("class", l);
        document.body.appendChild(e)
    }
    function h() {

NetanelBasal

const log = (tag: string) => tap(
  next => console.log(`%c[${tag}: Next]`, 'color: #4CAF50;', next),
  error => console.log(`%c${tag}: Error]`, 'color: #F44336;', error),
  () => console.log(`%c[${tag}: Complete]`, 'color: #2196F3;')
);