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// SO responsive mixin
// a mixin is different from a function as it does not return a value but serves as placeholder for code
@mixin responsive( $breakpoint ) {
    /*
        breakpoints are viewport arbitrary values,
        they are defined with the aim of allowing the SCSS/CSS code of your app' behave accordingly to your user's device width,
        the breakpoints I used were inspired by Bootstrap =>
        https://getbootstrap.com/docs/5.0/layout/breakpoints/
    */
    @if $breakpoint == smartphone-portrait {

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React-Native Command

Windows Commands

• rm node_modules/
• use ; for muti line commands
• rm $TMPDIR/react-* ; rm ios/build ; rm node_modules ; yarn cache clean ; npm cache verify

React Native

• react-native --help

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/* Basic example of saving cookie using axios in node.js and session's recreation after expiration.
 * We have to getting/saving cookie manually because WithCredential axios param use XHR and doesn't work in node.js
 * Also, this example supports parallel request and send only one create session request.
 * */

const BASE_URL = "https://google.com";

// Init instance of axios which works with BASE_URL
const axiosInstance = axios.create({ baseURL: BASE_URL });

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Installing Node.js with nvm to Linux & macOS & WSL

A quick guide on how to setup Node.js development environment.

Install nvm for managing Node.js versions

nvm allows installing several versions of Node.js to the same system. Sometimes applications require a certain versions of Node.js to work. Having the flexibility of using specific versions can help.

1. Open new Terminal window.

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Wordpress & Docker

This file will setup Wordpress, MySQL & PHPMyAdmin with a single command. Add the code below to a file called "docker-compose.yaml" and run the command

$ docker-compose up -d

# To Tear Down
$ docker-compose down --volumes

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start

sudo launchctl load /Library/LaunchDaemons/org.jenkins-ci.plist

stop

sudo launchctl unload /Library/LaunchDaemons/org.jenkins-ci.plist

https://medium.com/@anoopm6/how-to-uninstall-jenkins-from-mac-5a40b1e6bab6

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###############################################################################
# SECTION:Initial Settings
###############################################################################
# ConfigServer Firewall & Security Configuration File
#
# Copyright 2006-2013, Way to the Web Limited
# URL: http://www.configserver.com
# Email: [email protected]
###############################################################################

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vi /etc/environment

add these lines...

LANG=en_US.utf-8
LC_ALL=en_US.utf-8

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CSS Selectors Cheatsheet

Element selectors

Element -- selects all h2 elements on the page

h2 {
    foo: bar;

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import React from 'react'
import axios, { post } from 'axios';

class SimpleReactFileUpload extends React.Component {

  constructor(props) {
    super(props);
    this.state ={
      file:null
    }