pesterhazy

This gist lists challenges you run into when building offline-first applications based on IndexedDB, including open-source libraries like Firebase, pouchdb and AWS amplify (more).

Note that some of the following issues affect only Safari. Out of the major browsers, Chrome's IndexedDB implementation is the best.

Backing file on disk (WAL file) keeps growing (Safari)

When this bug occurs, every time you use the indexeddb, the WAL file grows. Garbage collection doesn't seem to be working, so after a while, you end up with gigabytes of data.

Random exceptions when working with a large number of indexeddb databases (Safari)

marvinhagemeister

/* eslint-disable no-unused-vars */
/* eslint-disable no-else-return */

// JSX constructor, similar to createElement()
export const h = (type, props, ...children) => {
	return {
		type,
		// Props will be an object for components and DOM nodes, but a string for
		// text nodes
		props,

Danziger

import React, { useEffect, useRef } from 'react';

/**
 * Use setInterval with Hooks in a declarative way.
 *
 * @see https://stackoverflow.com/a/59274004/3723993
 * @see https://overreacted.io/making-setinterval-declarative-with-react-hooks/
 */
export function useInterval(
  callback: React.EffectCallback,

jevakallio

TL;DR: If you want to see me perform a spoken word poem about JavaScript in front of 1000 people (and on video), please ⭐ star this gist. If you're on mobile, you'll need to request desktop site.

JavaScript Slam Poetry

squarism

Tabs and Windows

Function	Shortcut
New Tab	⌘ + T
Close Tab or Window	⌘ + W (same as many mac apps)
Go to Tab	⌘ + Number Key (ie: ⌘2 is 2nd tab)
Go to Split Pane by Direction	⌘ + Option + Arrow Key
Cycle iTerm Windows	⌘ + backtick (true of all mac apps and works with desktops/mission control)

PurpleBooth

Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

Prerequisites

kenandersen

// Random terminal tip #1

//You'll see this message if you git commit without a message (-m)
// You can get out of it with two steps:
// 1.a. Type a multi-line message to move foward with the commit.
// 1.b. Leave blank to abort the commit.
// 2. Hit "esc" then type ":wq" and hit enter to save your choice. Viola!

# Please enter the commit message for your changes. Lines starting
# with '#' will be ignored, and an empty message aborts the commit.

dwayne

Problem: What does a Modern Front-End Development Workflow Look Like?

I want to start writing libraries and large applications using the JavaScript language. However, I don't know how to setup the project and which build tools to use. What I do know is that the JavaScript community has moved way beyond using browser developer tool plugins and strategically-placed console.log() statements to debug, test, and build code.

I need help.

Below, I will keep track of articles, tutorials and tools I come across as I search for a way to bring my front-end development chops up-to-date.

The Ultimate Resource

CristinaSolana

1. Clone your fork:

git clone git@github.com:YOUR-USERNAME/YOUR-FORKED-REPO.git

2. Add remote from original repository in your forked repository:

cd into/cloned/fork-repo
git remote add upstream git://github.com/ORIGINAL-DEV-USERNAME/REPO-YOU-FORKED-FROM.git
git fetch upstream