eatoncw’s gists

eatoncw / batch.ts

Created August 18, 2020 20:17

batch async

	// takes a large array of items, chunks them, performs an async task on that item

	import { chunk } from "lodash";

	function wait(time: number) { // in ms
	return new Promise(resolve => setTimeout(resolve, time));
	}

	export async function batch(
	arr: any,

eatoncw / product_filters_data_helper.rb

Created March 7, 2018 23:07

eg rails helper using request params and data set to create radio buttons for product filtering

	def ProductFiltersDataHelper.furniture_types
	[
	{name: "all", types: "all"},{name: "sofas and loveseats", types: "!table sofa couch sectional loveseat settee"},
	{name: "wardrobes", types: "wardrobe armoire chifforobe"},{name: "buffets", types: "buffet sideboard credenza"},
	{name: "chairs and stools", types: "chair armchair recliner stool rocker"},{name: "tables", types: "table sidetable"},
	{name: "beds", types: "!table bed"},{name: "desks", types: "desk"},
	{name: "bookcases and shelves", types: "!desk bookcase shelves"},{name: "cabinets", types: "cabinet"},
	{name: "mirrors", types: "mirror"}
	]
	end

eatoncw / gist:279579ca5ec76b07b9e89d4221b5139c

Created March 7, 2018 20:26

dynamically generate params for GET request to update products page based on user-selected filters

	//uses jquery to send request to rails 5 built api-only backend

	$('.sales-filters input').on('click', function() {
	var params = {};
	var filters = $('.sales-filters input:checked'); //get array of all checked radio buttons
	for (i = 0; i < filters.length; i++) {
	params[filters[i].name] = filters[i].value //dynamically create params for GET request based on name and value attributes
	}
	var url = window.location.origin + '.....'
	fetchAndPaginate(url,params)

eatoncw / best_buy_sales_finder_worker.rb

Created March 7, 2018 20:15

Sample api request - find certain Best Buy products that are on sale and save to database

	#utilize a background job - using sidekiq with redis queue

	class ApisSalesFinders::BestbuySalesFinderWorker < ApisSalesFinders::SalesFinders
	include Sidekiq::Worker
	require './app/models/scrape_constants/collections' #ebay product categories

	def perform
	current_items = Product.where(retailer: "best buy")
	discount = 10
	minimum_price = 75 #used to filter out some accessory products

eatoncw / gist:1e6616d8a85c96130ab7cee40fffb8cf

Last active February 16, 2018 03:09

Javascript find max value in array of objects with key as argument, using reduce

	//find max value in array of objects with key as argument
	function findMax(key) {
	return function maxx(prev,curr) {
	return Math.max(prev, curr[key]);
	}
	}

	//then pass function to reduce with key as argument
	//eg get max price from an array of objects
	var maxPrice = array.reduce(findMax("price"),0);

eatoncw / gist:2deb6a62e3056e5e53b0af8cd39a1c36

Last active June 7, 2019 01:44

PDF to JPG conversion using Rails 5, Paperclip. Improved resolution of output

	#Accepts all image files and pdfs. If the upload is a pdf, it is converted to a jpg
	#Paperclip incorporates ImageMagick. If a multipage page PDF, only the first page is converted

	#Model
	#here the original style needs to be given source_file_options. It's critical that the original file is not passed geometry
	#or the resolution won't really improve

	has_attached_file :avatar,
	styles: lambda { \|attachment\|
	styles = {}

eatoncw / about.html

Last active February 23, 2016 22:40

My homepage

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<link href='https://fonts.googleapis.com/css?family=Oswald' rel='stylesheet' type='text/css'>

	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1">

	<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
	<link rel="stylesheet" href="css/styles.css">

Christopher Eaton eatoncw