vitobotta

// This code is to be used with https://turbo.hotwire.dev. By default Turbo keeps visited pages in its cache 
// so that when you visit one of those pages again, Turbo will fetch the copy from cache first and present that to the user, then 
// it will fetch the updated page from the server and replace the preview. This makes for a much more responsive navigation 
// between pages. We can improve this further with the code in this file. It enables automatic prefetching of a page when you
// hover with the mouse on a link or touch it on a mobile device. There is a delay between the mouseover event and the click
// event, so with this trick the page is already being fetched before the click happens, speeding up also the first 
// view of a page not yet in cache. When the page has been prefetched it is then added to Turbo's cache so it's available for
// the next visit during the same session. Turbo's default behavior plus this trick make for much more responsive UIs (non SPA).

rahulramfort

#!/usr/bin/env ruby

=begin

A hook to make sure that all staged .rb files are syntatically correct.
The hook tries to run `ruby -c file_path` for all those files and
prints outs the errors if any and halts the commit.

If you want to use this pre-commit, simply copy the code and create a
file called 'pre-commit' inside your .git/hooks directory.

pcreux

Failsafe

When something goes wrong I want to degrade the user experience (instead of returning a 500 - Server Error) And I want to be notified about the failure

Usage

Wrap non mission critical code:

marcoarment

<?php
function base64url_encode($binary_data) { return strtr(rtrim(base64_encode($binary_data), '='), '+/', '-_'); }

function apns_jwt_token($team_id, $key_id, $private_key_pem_str)
{
    if (! function_exists('openssl_get_md_methods') || ! in_array('sha256', openssl_get_md_methods())) throw new Exception('Requires openssl with sha256 support');

    $private_key = openssl_pkey_get_private($private_key_pem_str);
    if (! $private_key) throw new Exception('Cannot decode private key');

tomhicks

/*
Copy this into the console of any web page that is interactive and doesn't
do hard reloads. You will hear your DOM changes as different pitches of
audio.

I have found this interesting for debugging, but also fun to hear web pages
render like UIs do in movies.
*/

const audioCtx = new (window.AudioContext || window.webkitAudioContext)()

ntamvl

How to create a Ruby gem that adds Rake tasks

Create a gem

One way to do this is to use bundler to scaffold our gem:

bundler gem my_gem

Add rake tasks to our gem

I prefer to put tasks meant to manage the gem itself in lib/tasks, and tasks the gem is meant to provide to gem users in lib/my_gem/tasks.

fractaledmind

# frozen_string_literal: true

require "bundler/inline"

gemfile(true) do
  source "https://rubygems.org"

  git_source(:github) { |repo| "https://github.com/#{repo}.git" }

  # Activate the gem you are reporting the issue against.

javan

getHexColor = (color) ->
  return "" unless color
  return color if /^#/.test(color)
  rgbValues = getRGBValues(color)
  hexValues = rgbValues.map(numberToHex)
  "#" + hexValues.join("")

numberToHex = (number) ->
  "0#{number.toString(16)}".slice(-2).toUpperCase()

BrianSigafoos

Dynamic Method

# Decide how to define a method at runtime
class C
end

C.class_eval do
  define_method :my_method do
    'a dynamic method'
 end

ljharb

Array Iteration

https://gist.github.com/ljharb/58faf1cfcb4e6808f74aae4ef7944cff

While attempting to explain JavaScript's reduce method on arrays, conceptually, I came up with the following - hopefully it's helpful; happy to tweak it if anyone has suggestions.

Intro

JavaScript Arrays have lots of built in methods on their prototype. Some of them mutate - ie, they change the underlying array in-place. Luckily, most of them do not - they instead return an entirely distinct array. Since arrays are conceptually a contiguous list of items, it helps code clarity and maintainability a lot to be able to operate on them in a "functional" way. (I'll also insist on referring to an array as a "list" - although in some languages, List is a native data type, in JS and this post, I'm referring to the concept. Everywhere I use the word "list" you can assume I'm talking about a JS Array) This means, to perform a single operation on the list as a whole ("atomically"), and to return a new list - thus making it mu