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cggaurav / shuffle.js
Created December 31, 2018 14:33 — forked from guilhermepontes/shuffle.js
Shuffle Array - JavaScript ES2015, ES6
// original gist
const shuffleArray = arr => arr.sort(() => Math.random() - 0.5);
// fully random by @BetonMAN
const shuffleArray = arr => arr
.map(a => [Math.random(), a])
.sort((a, b) => a[0] - b[0])
.map(a => a[1]);
shuffleArray([1, 2, 3]) //[3, 1, 2]

Scaling your API with rate limiters

The following are examples of the four types rate limiters discussed in the accompanying blog post. In the examples below I've used pseudocode-like Ruby, so if you're unfamiliar with Ruby you should be able to easily translate this approach to other languages. Complete examples in Ruby are also provided later in this gist.

In most cases you'll want all these examples to be classes, but I've used simple functions here to keep the code samples brief.

Request rate limiter

This uses a basic token bucket algorithm and relies on the fact that Redis scripts execute atomically. No other operations can run between fetching the count and writing the new count.

cggaurav / generators-test.js
Created August 25, 2018 01:10 — forked from grimen/generators-test.js
Experiments with Node.js Generator API - partially requires Node 10.
/* =========================================
-------------------------------------- */
const fs = require('fs')
const { promisify } = require('util')
sleep = promisify(setTimeout)
cggaurav / streams-test.js
Created June 18, 2018 20:06 — forked from grimen/streams-test.js
Experiments with Node.js Stream API.
/* =============================================
------------------------------------------ */
const debug = require('debug')
const { Readable, Writable, Transform } = require('stream')
const JSONStream = require('JSONStream')
cggaurav / cloudapp-export.rb
Last active October 9, 2017 00:10 — forked from adamcooke/cloudapp-export.rb
Export all your drops from CloudApp using this quick Ruby script
#!/usr/bin/env ruby
# A quick script to download all your files from CloudApp.
# To run this just run the script passing your e-mail & password
# to the script, for example:
# gem install cloudapp_api
# ruby cloudapp-export.rb mypassword
cggaurav /
Created May 18, 2017 23:45 — forked from joepie91/
The Promises FAQ - addressing the most common questions and misconceptions about Promises.
$ wget \
--recursive \
--no-clobber \
--page-requisites \
--html-extension \
--convert-links \
--restrict-file-names=windows \
--domains \
--no-parent \
# Initialize the stuff
# We build the status bar item menu
framework 'AppKit'
def setupMenu
menu =
menu.initWithTitle 'Flipsicle'
mi =
# Name:
# Author: Brian Klug (@nerdtalker /
# Purpose:
# Move Files into directory based on EXIF data make and model
# Designed to un-clusterfuck the Dropbox camera upload directory which is a mess of every
# JPEG and PNG ever if you use it like I do on a bunch of phones, and thus totally unwieldy
# and full of images sorted by date or else nothing sometimes, dropbox seems nondeterminstic
# Moves files into /[Image Make]+[Image Model]/ eg /Camera Uploads/LGE Nexus 4/
app = angular.module 'BlogExample', []
# Simple controller that loads all blog posts
app.controller 'BlogCtrl', ['$scope', 'Blog', ($scope, Blog) ->
# Get all the blog posts
Blog.all().then (posts) ->
$scope.posts = posts
# Extend the $scope with our own properties, all in one big block
# I like this because it looks like declaring a class.