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componentDidUpdate -> triggered by forceUpdate or all everything update on props & state ( React.Component )
render -> triggered by componentDidUpdate ( note : not render if setState on purecomponent.componentDidMount() )

r17x

python -m virtualenv py3 -p python3.7

r17x

from InstagramAPI import InstagramAPI as IG
from pprint import PrettyPrinter
from getpass import getpass
from random import randint
import time

pp =  PrettyPrinter(indent=2)

api = IG(

r17x

# example error
# scenario : 
$ yarn test (on react) # or
$ jest --watch

2016-09-22 10:49 node[79167] (FSEvents.framework) FSEventStreamStart: register_with_server: ERROR: f2d_register_rpc() => (null) (-22)

# solution
# install watchman 

r17x

https://stackoverflow.com/questions/3518504/regular-expression-for-matching-latitude-longitude-coordinates

# latitude pattern regex
^(\+|-)?(?:90(?:(?:\.0{1,6})?)|(?:[0-9]|[1-8][0-9])(?:(?:\.[0-9]{1,6})?))$
# longitude pattern regex
^(\+|-)?(?:180(?:(?:\.0{1,6})?)|(?:[0-9]|[1-9][0-9]|1[0-7][0-9])(?:(?:\.[0-9]{1,6})?))$

r17x

Problem: Unsuccessful deployment javascript application when update package.json

• yarn
• docker

# Example error Message
Step 4/8 : RUN yarn install
 ---> Running in hashnumber
yarn install v1.6.0
[1/4] Resolving packages...
[2/4] Fetching packages...

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Daily:

SELECT year(userCreated), month(userCreated), day(userCreated), count(*)
FROM Users
GROUP BY year(userCreated), month(userCreated), day(userCreated)

Monthly:

SELECT year(userCreated), month(userCreated), count(*)

r17x

import React, {Fragment} from 'react';
import { 
    BrowserRouter as Router, 
    Route, 
    Link
} from "react-router-dom";

import {Admin, User} from './Auth'; // Add this line

const Navigation = () => (

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import React, {Component} from 'react';
/**
 * Get User from Local Storage
 * https://developer.mozilla.org/en-US/docs/Web/API/Web_Storage_API
 * @return {obeject} UserData
 * {
 *  username: string,
 *  role: string
 * }
 */

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import React, { Component } from 'react';
//import logo from './logo.svg';
//import './App.css';
import Routers from './Router';

class App extends Component {
  render() {
    return <Routers/>;
  }
}