Skip to content

Instantly share code, notes, and snippets.

@jquense
jquense / 0. intro.md
Last active September 24, 2022 05:10
Alternative ways to define react Components

The 0.13.0 improvements to React Components are often framed as "es6 classes" but being able to use the new class syntax isn't really the big change. The main thing of note in 0.13 is that React Components are no longer special objects that need to be created using a specific method (createClass()). One of the benefits of this change is that you can use the es6 class syntax, but also tons of other patterns work as well!

Below are a few examples creating React components that all work as expected using a bunch of JS object creation patterns (https://github.com/getify/You-Dont-Know-JS/blob/master/this%20&%20object%20prototypes/ch4.md#mixins). All of the examples are of stateful components, and so need to delegate to React.Component for setState(), but if you have stateless components each patterns tends to get even simpler. The one major caveat with react components is that you need to assign props and context to the component instance otherwise the component will be static. The reason is

@samwgoldman
samwgoldman / example.js
Last active April 3, 2021 22:20
Pure, stateless, type-checked React components with Immutable.js and Flow
/* @flow */
var React = require("react")
var Immutable = require("immutable")
// In order to use any type as props, including Immutable objects, we
// wrap our prop type as the sole "data" key passed as props.
type Component<P> = ReactClass<{},{ data: P },{}>
type Element = ReactElement<any, any, any>

Folder Structure

Please note

While this gist has been shared and followed for years, I regret not giving more background. It was originally a gist for the engineering org I was in, not a "general suggestion" for any React app.

Typically I avoid folders altogether. Heck, I even avoid new files. If I can build an app with one 2000 line file I will. New files and folders are a pain.

@hughevans
hughevans / application.rb
Created October 27, 2014 00:12
Invalidate CloudFront cache of S3 assets in Comfortable Mexican Sofa after update or destroy using the Fog gem
module YourApp
class Application < Rails::Application
config.after_initialize do
Comfy::Cms::File.send(:include, ComfyCloudfront)
end
end
end
require 'comfy_cloudfront'

Screencapture and animated gifs

I say "animated gif" but in reality I think it's irresponsible to be serving "real" GIF files to people now. You should be serving gfy's, gifv's, webm, mp4s, whatever. They're a fraction of the filesize making it easier for you to deliver high fidelity, full color animation very quickly, especially on bad mobile connections. (But I suppose if you're just doing this for small audiences (like bug reporting), then LICEcap is a good solution).

Capturing (Easy)

  1. Launch quicktime player
  2. do Screen recording

screen shot 2014-10-22 at 11 16 23 am

@johntyree
johntyree / getBlockLists.sh
Last active March 9, 2024 12:32
Make one large blocklist from the bluetack lists on iblocklist.com
#!/usr/bin/env sh
# Download lists, unpack and filter, write to stdout
curl -s https://www.iblocklist.com/lists.php \
| sed -n "s/.*value='\(http:.*=bt_.*\)'.*/\1/p" \
| xargs wget -O - \
| gunzip \
| egrep -v '^#'
@rjz
rjz / mediator.coffee
Created July 12, 2012 17:14
Coffeescript pub/sub mediator
# Very simple Mediator in Coffeescript
# Based on the Pub/Sub implementation by rpflorence (https://github.com/rpflorence)
class Mediator
constructor: ->
@channels = {}
subscribe: (name, callback) ->
@channels[name] = [] unless @channels[name]?
@mojodna
mojodna / Procfile
Created September 29, 2011 20:22 — forked from RandomEtc/Procfile
Getting Kue working on Heroku
web: node app.js
worker: node consumer.js