charlespwd

Definitions

We denote $s$ to be the source code. Capitalized to represent the set of possible source code — $s \in S$.

We denote $a(s)$ to be the AST of $s$. Capitalized to represent the set of possible ASTs — $a(s) \in A$.

We denote $\alpha$ to represent data.

We denote $i(a, \alpha)$ the intermediate representation (IR) of $s$ given $\alpha$ — $i(s, \alpha) \in I$.

charlespwd

console.log(top);
console.log(top.opener);

charlespwd

Out of combat

Common

• Adventure / Mounted
• Tavern
• Peaceful
• Town day
• Rich town day
• Town night

charlespwd

# This code is a vectorized R version of the Lighthouse scoring code
# that you can find here:
# https://github.com/GoogleChrome/lighthouse/blob/9e0e9dfb67a3dd38b611b02d1129b197da8a2b0c/lighthouse-core/lib/statistics.js#L75-L97

INVERSE_ERFC_ONE_FIFTH <- 0.9061938024368232

erf <- function(x) {
  s <- sign(x)
  x <- abs(x)
  a1 <- 0.254829592

charlespwd

#!/usr/bin/env bash

file=$1
n=$2

if [[ $# -lt 2 ]]; then
cat <<- EOD
Usage: $0 <path> <number_of_files>
EOD
fi

charlespwd

addEventListener('fetch', (event) => {
  event.respondWith(handleRequest(event.request))
})

const sleep = ms => new Promise(r => setTimeout(r, ms));

async function handleRequest(request) {
  const url = new URL(request.url)

  // Disallow crawlers

charlespwd

# How it works: They're just base64'd with a small header at the start
# Trim the header + decode and there you have it!
# (just make sure you're using the appropriate file type)

# macOS
pbpaste | sed 's#data[^,]+,##' | base64 -d > image.png
open image.png

# Linux (IIRC)
xclip -sel clipboard -o | sed 's#data[^,]+,##' | base64 -d > image.png

charlespwd

/* Started from https://andydavies.me/blog/2020/09/22/exploring-site-speed-optimisations-with-webpagetest-and-cloudflare-workers */

const site = 'www.gymshark.com'

addEventListener('fetch', (event) => {
  event.respondWith(handleRequest(event.request))
})

async function handleRequest(request) {
  const url = new URL(request.url)

charlespwd

#!/usr/bin/env bash
set -eou pipefail

profile=$1
frameRate=${2:-10}
timeline='timeline.json'
cat $profile \
  | jq '.[] | select(.args.snapshot | . and (type == "string") and contains("/9j"))' \
  | jq -s . \
  > $timeline

charlespwd

(function trackOnClickFPS() {
  window.dataLayer = window.dataLayer || [];
  var start = performance.now();
  var end = start;
  var diff = 0;
  var page = "";
  var frameCount = 0;
  var frcurr = start;
  var frprev = start;
  var frdiff = 0;