realamirhe

import { useRef, useCallback } from 'react';

export const useUndoRedo = <T>() => {
  const undoStack = useRef<T[]>([]);
  const undoPointer = useRef(-1);

  const add = useCallback((item: T) => {
    const pointer = ++undoPointer.current;
    undoStack.current.length = pointer;
    undoStack.current[pointer] = item;

realamirhe

Installing flutter in Ubuntu with sanctions

1. Install snap
2. follow instruction of this youtube video

Notes:

install flutter with snap

realamirhe

When you install Puppeteer, it downloads a recent version of Chromium (~170MB Mac, ~282MB Linux, ~280MB Win) that is guaranteed to work with the API.

If you have chrome-linux.zip by chance here is instruction to get it into work

1. PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=1 yarn add puppeteer
2. make a folder named .local-chromium in node_modules/puppeteer
3. if you are in linux make another folder named linux-901912 in .local-chromium

version is the same as the version which you've downloaded chromimum e.g. in https://storage.googleapis.com/chromium-browser-snapshots/Linux_x64/901912/chrome-linux.zip

sebmarkbage

React (Virtual) DOM Terminology

In React's terminology, there are five core types that are important to distinguish:

• ReactElement / ReactElement Factory
• ReactNode
• ReactComponent / ReactComponent Class

React Elements

kevinSuttle

DEPRECATED

Please see: https://github.com/kevinSuttle/html-meta-tags, thanks for the idea @dandv!

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Copied from http://code.lancepollard.com/complete-list-of-html-meta-tags/

Basic HTML Meta Tags