trujunzhang

;; -*- mode: emacs-lisp -*-
;; This file is loaded by Spacemacs at startup.
;; It must be stored in your home directory.
(defun dotspacemacs/layers ()
  "Configuration Layers declaration.
You should not put any user code in this function besides modifying the variable
values."
  (setq-default
   ;; Base distribution to use. This is a layer contained in the directory
   ;; `+distribution'. For now available distributions are `spacemacs-base'

trujunzhang

import React, { Component } from 'react'
import { RootNavigator } from './navigators'
import { GoogleAnalyticsTracker } from './utils/analytics'
import { GA_TRACKING_ID } from './constants'

class App extends Component {
  // gets the current screen from navigation state
  getCurrentRouteName = (navigationState) => {
    if (!navigationState) {
      return null

trujunzhang

Disclaimer: The instructions are the collective efforts from a few places online. 
Nothing here is my original. But I want to put them together in one place to save people from spending the same time as I did.

First off, bundle.
==================

1. cd to the project directory
2. Start the react-native packager if not started
3. Download the bundle to the asset folder:
curl "http://localhost:8081/index.android.bundle?platform=android" -o "android/app/src/main/assets/index.android.bundle"

trujunzhang

React + Typescript Cheatsheet

Setup

If you use atom... download & install the following packages:

• atom-typescript
• linter-tslint

What are Typescript type definition files? (*.d.ts)

trujunzhang

How to setup next.js app on nginx with letsencrypt

next.js, nginx, reverse-proxy, ssl

1. Install nginx and letsencrypt

$ sudo apt-get update
$ sudo apt-get install nginx letsencrypt

Also enable nginx in ufw

trujunzhang

for x in *.js; do mv "$x" "${x%.js}.jsx"; done

trujunzhang

// resend verify email
Parse.Cloud.define("ResendVerifyEmail", function(request, response) {
    var user = Parse.User.current();
    if (!user) {
        response.error("INVALID_USER");
        return;
    }
    var email = request.params.email;
    var query = new Parse.Query(Parse.User);
    Parse.Cloud.useMasterKey();

trujunzhang

$ brew tap homebrew/versions
$ brew install imagemagick@6

$ PKG_CONFIG_PATH=/usr/local/opt/imagemagick@6/lib/pkgconfig gem install rmagick

trujunzhang

How to install PhantomJS on Ubuntu

Version: 1.9.8

Platform: x86_64

First, install or update to the latest system software.

sudo apt-get update
sudo apt-get install build-essential chrpath libssl-dev libxft-dev

trujunzhang

#Deploying a Meteor app to Digital Ocean

Table of Contents

1. Create an SSH Key
2. Create a Digital Ocean account and droplet
3. Connect to your server with SSH
4. Create a new user and disable root access
5. Give your new user sudo privileges and add SSH keys to his/her account
6. Disable remote access to root account