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<!doctype html>
<!-- http://taylor.fausak.me/2015/01/27/ios-8-web-apps/ -->
<html>
<head>
<title>iOS 8 web app</title>
<!-- CONFIGURATION -->
@jlong
jlong / uri.js
Created April 20, 2012 13:29
URI Parsing with Javascript
var parser = document.createElement('a');
parser.href = "http://example.com:3000/pathname/?search=test#hash";
parser.protocol; // => "http:"
parser.hostname; // => "example.com"
parser.port; // => "3000"
parser.pathname; // => "/pathname/"
parser.search; // => "?search=test"
parser.hash; // => "#hash"
parser.host; // => "example.com:3000"
@jboner
jboner / latency.txt
Last active August 20, 2025 21:38
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
@domenic
domenic / promise-retryer.js
Last active September 16, 2023 02:43
Generalized promise retryer
"use strict";
// `f` is assumed to sporadically fail with `TemporaryNetworkError` instances.
// If one of those happens, we want to retry until it doesn't.
// If `f` fails with something else, then we should re-throw: we don't know how to handle that, and it's a
// sign something went wrong. Since `f` is a good promise-returning function, it only ever fulfills or rejects;
// it has no synchronous behavior (e.g. throwing).
function dontGiveUp(f) {
return f().then(
undefined, // pass through success
@peterjmit
peterjmit / benchmark.sh
Created October 10, 2012 10:49
Bash Benchmark Script (using time)
#!/bin/bash
# REQUIRES SUDO
# Benchmark runner
repeats=20
output_file='benchmark_results.csv'
command_to_run='echo 1'
run_tests() {
# --------------------------------------------------------------------------
@cowboy
cowboy / Cowboy - Presentation.tmTheme
Created November 29, 2012 19:55
Sublime / TM theme I use for presentations.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>author</key>
<string>Jacob Rus</string>
<key>comment</key>
<string>Created by Jacob Rus. Based on ‘Slate’ by Wilson Miner</string>
<key>name</key>
<string>Cowboy - Presentation</string>
@desandro
desandro / require-js-discussion.md
Created January 31, 2013 20:26
Can you help me understand the benefit of require.js?

I'm having trouble understanding the benefit of require.js. Can you help me out? I imagine other developers have a similar interest.

From Require.js - Why AMD:

The AMD format comes from wanting a module format that was better than today's "write a bunch of script tags with implicit dependencies that you have to manually order"

I don't quite understand why this methodology is so bad. The difficult part is that you have to manually order dependencies. But the benefit is that you don't have an additional layer of abstraction.


@hzqtc
hzqtc / imgcmp.py
Last active December 16, 2015 10:28
Compare two image mathematically using Perceptual Hash Algorithm. http://hzqtc.github.io/2013/04/image-duplication-detection.html
#!/usr/bin/python
import sys
from PIL import Image
def avhash(im):
if not isinstance(im, Image.Image):
im = Image.open(im)
im = im.resize((8, 8), Image.ANTIALIAS).convert('L')
avg = reduce(lambda x, y: x + y, im.getdata()) / 64.
@machty
machty / new-router-examples.md
Last active April 16, 2020 22:03
How to do cool stuff with the new Router API
@slindberg
slindberg / ember-data.dependent-relations.js
Last active November 5, 2021 21:41
Dependent Relationships in Ember Data
/**
Ember Data: Dependent Relationships
This package extends Ember Data to support creating relationships
where a model's dirty state depends not only on its own attributes
but on the dirty state of models in dependent relationships as well.
```javascript
App.Thing = DS.Model.extend({
name : DS.attr('string'),