Roman Podlinov keepitsimple

From: https://stackoverflow.com/questions/41004631/trace-why-a-react-component-is-re-rendering

If you want a short snippet without any external dependencies I find this useful

componentDidUpdate(prevProps, prevState) {
  Object.entries(this.props).forEach(([key, val]) =>
    prevProps[key] !== val && console.log(`Prop '${key}' changed`)
  );
  if (this.state) {

Object.entries(this.state).forEach(([key, val]) =>

	import fs from 'fs'
	import http from 'http'
	import { basename } from 'path'
	import { URL } from 'url'

	const TIMEOUT = 10000

	export default function (url, path) {
	const uri = new URL(url)
	if (!path) {

	image: alpine/git:1.0.26

	definitions:
	services:
	docker:
	memory: 1024

	steps:
	- step: &Push-to-GitHub
	name: Push code changes to GitHub

	const path = require('path')

	module.exports = {
	eslint: {
	enable: false
	},
	webpack: {
	alias: {
	src: path.resolve(__dirname, 'src/')
	},

	const path = require('path')

	module.exports = {
	extends: [
	'react-app',
	'standard',
	'standard-react',
	'plugin:import/errors',
	'plugin:import/warnings'
	],

	# Make mongodb backup as gzipped archive -T very important if you use docker-compose

	docker-compose exec -T [mongo service name] mongodump --db=[dbname] --gzip --archive\|cat >dump_$(date '+%d-%m-%Y_%H-%M-%S').gz


	#Restore mongodb from gzipped archive

	docker-compose exec -T mongo mongorestore --archive --gzip < dump_xxx.gz

	<!DOCTYPE html>

	<head>
	<script>
	var recordedChunks = [];
	var constraints = {
	audio: true,
	video: true
	};
	var mediaRecorder = null;

	select max_conn,used,res_for_super,max_conn-used-res_for_super res_for_normal
	from
	(select count(*) used from pg_stat_activity) t1,
	(select setting::int res_for_super from pg_settings where name=$$superuser_reserved_connections$$) t2,
	(select setting::int max_conn from pg_settings where name=$$max_connections$$) t3;

	select * from pg_stat_activity;

Roman Podlinov keepitsimple

Все для быстрого прототипирования