Hrishi Mittal hrishimittal

A list of resources that aspiring Rails developers can use to learn Rails and other relevant technologies.

Ruby

Codecademy
- One of the more well-known sites to offer interactive programming tutorials, Codecademy is probably best utilized by those who are pretty new to programming, though the Ruby tutorial is good for teaching Ruby syntax and eventually gets into some less trivial material.
Try Ruby
- Pretty similar to Codecademy. Once again, it's beginner-friendly, though, as someone who knew about object-oriented programming beforehand, I found it somewhat annoying to use, as there's no page with links to the individual exercises (at least from what I could tell).
RubyMonk
As with the previous two resources, RubyMonk offers interactive tutorials. However, it has several different courses on various programming topics and for different experience levels, which

Open all files with git merge conflicts in MacVim

git diff --name-only | uniq | xargs mvim

When git encounters a merge conflict, e.g. during a rebase, it drops you back into the shell with a dirty working directory. I like this one-liner for opening all files with a merge conflict in MacVim.

Once you're in Vim, you can then switch between the files with :n and :prev, or another favourite: :w | n (save current file and open the next command line-supplied file).

UPDATE: see below for a version that works with real terminal commands.

[title] How to use React with a Rails 5 API app - A hands-on tutorial

[intro]

React and Rails make a great combination
In this hands-on tutorial, I'll show you how to build a complete React app that works with a Rails 5 API
You need to be comfortable with Rails but don't need to be a JavaScript or React expert
What we're going to build - an Idea board!
Outline of the steps we'll take to build this app

	def solve(url)
	require 'net/http'
	require 'json'
	uri = URI(url)
	response = JSON.parse(Net::HTTP.get(uri))
	puts response
	solve(response["follow"].gsub('challenge', 'challenge.json')) if response["message"] == "This is not the end"
	end

	solve("https://www.letsrevolutionizetesting.com/challenge.json")

	div.css-1dbjc4n.r-1dgieki.r-1efd50x.r-5kkj8d.r-13awgt0.r-18u37iz.r-tzz3ar.r-s1qlax.r-1yzf0co {
	display: none;
	}

	div.css-1dbjc4n.r-13awgt0.r-18u37iz.r-1w6e6rj {
	display: none;
	}

	span.css-901oao.css-16my406.r-poiln3.r-n6v787.r-1cwl3u0.r-1k6nrdp.r-1e081e0.r-qvutc0 {
	display: none;

	def add_to_mailchimp_group(email)
	gibbon = Gibbon::Request.new
	gibbon.lists('some_list_id')
	.members(Digest::MD5.hexdigest(email.downcase).downcase)
	.upsert(body: {
	email_address: email,
	status: "subscribed",
	interests: {'some_group_id' => true},
	merge_fields: {"MERGE1" => 'merge_field_value'}
	})

	import React from 'react';
	import { StyleSheet } from 'react-native';
	import WebViewLeaflet from 'react-native-webview-leaflet';

	onLoad = (event) => {
	const mapLayers = [
	{
	name: 'OpenStreetMap',
	checked: 'true',
	type: 'TileLayer',

	#Put this in application_controller.rb to trace all redirects

	def redirect_to(options = {}, response_status = {})
	puts("Redirected by #{caller(1).first rescue "unknown"}")
	super(options, response_status)
	end

	#Put this in application_controller.rb to trace all redirects

	import React from 'react';

	export const FormErrors = ({formErrors}) =>
	<div className='formErrors'>
	{Object.keys(formErrors).map((fieldName, i) => {
	if(formErrors[fieldName].length > 0){
	return (
	<p key={i}>{fieldName} {formErrors[fieldName]}</p>
	)
	} else {

	<%= react_component('Lists', lists: @lists) %>