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@hrldcpr
hrldcpr / tree.md
Last active January 24, 2026 21:18
one-line tree in python

One-line Tree in Python

Using Python's built-in defaultdict we can easily define a tree data structure:

def tree(): return defaultdict(tree)

That's it!

@bga
bga / z.js
Created February 27, 2012 12:31 — forked from heapwolf/z.js
z
var match = []
var _finalizeExpr = function(match) {
var vs = match[0]
var _iter = match[1]
var _done = match[2]
var i = 0
var _iterWrappper = function() {
if(i === vs.length) {
@Gozala
Gozala / example.js
Created January 29, 2012 03:46
Workaround for lack of "tail call optimization" in JS
// Lack of tail call optimization in JS
var sum = function(x, y) {
return y > 0 ? sum(x + 1, y - 1) :
y < 0 ? sum(x - 1, y + 1) :
x
}
sum(20, 100000) // => RangeError: Maximum call stack size exceeded
// Using workaround
@jakemarsh
jakemarsh / reset_simulator.applescript
Created January 20, 2012 14:57
Simple Applescript that can be run from the command line to programmatically reset the iOS simulator.
tell application "iPhone Simulator"
activate
end tell
tell application "System Events"
tell process "iPhone Simulator"
tell menu bar 1
tell menu bar item "iOS Simulator"
tell menu "iOS Simulator"
click menu item "Reset Content and Settings…"
@lucasrizoli
lucasrizoli / gist:1603274
Created January 12, 2012 21:33
70 Unique Ways to Encode <
<
%3C
&lt
&lt;
&LT
&LT;
&#60
&#060
&#0060
&#00060
@atomicbird
atomicbird / NSObject+setValuesForKeysWithJSONDictionary.h
Created January 11, 2012 02:35
NSObject category for handling JSON dictionaries. Described in detail at http://www.cimgf.com/2012/01/11/handling-incoming-json-redux/
//
// NSObject+setValuesForKeysWithJSONDictionary.h
// SafeSetDemo
//
// Created by Tom Harrington on 12/29/11.
// Copyright (c) 2011 Atomic Bird, LLC. All rights reserved.
//
#import <Foundation/Foundation.h>
/**
# eq.js: minimalistic equation evaluator.
eq(str, vars)
Features:
- evaluate variables in the `vars` object
- `str` can use any `Math` function or property: round, ceil, max, E
@jonathanpenn
jonathanpenn / unix_instruments.sh
Last active January 26, 2016 19:09
Make Instruments play nice with unix by returning > 0 status code if build fails
#!/usr/bin/env bash
#
# Copyright (c) 2013 Jonathan Penn (http://cocoamanifest.net)
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
@felixge
felixge / command.sh
Created October 29, 2011 13:43
Bash stuff for fighting a weak DOS attack
# Here a few bash one-liners that helped me analyze / fight a weak DOS attack against debuggable.com. Mostly for future reference.
# The attacker was opening lots of tcp connections without sending data, I believe it's called a SYN flood, see: http://tools.ietf.org/html/rfc4987#section-3.2
# Step 0: Check what is going on at port 80
$ netstat -tan | grep ':80 ' | awk '{print $6}' | sort | uniq -c
# Step 1: Increase the number of available fds
$ ulimit -n 32000
# Step 2: Restart your webserver, for me:
@p01
p01 / LICENSE.txt
Last active May 23, 2024 13:46 — forked from 140bytes/LICENSE.txt
Sudoku Solver in 140bytes
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
Version 2, December 2004
Copyright (C) 2011 Mathieu 'p01' Henri - http://www.p01.org/releases/
Everyone is permitted to copy and distribute verbatim or modified
copies of this license document, and changing it is allowed as long
as the name is changed.
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE