Noah Tye noahlt

## oh_shit_that_sometimes_happens.txt
OH SHIT THAT SOMETIMES HAPPENS


SAM: yo, can you help me out

CHUCK: hey what do you need

SAM: I don’t know if I told you but I recently became a camp counselor

## python_lru_cache_kwarg_order.md

      
              1 file
            
          
              0 forks
            
          
              7 comments
            
          
              2 stars
            
          
                noahlt
                / python_lru_cache_kwarg_order.md
            
            
              Created
              July 28, 2017 14:40
            
          
    Python’s lru_cache is sensitive to order of keyword arguments

In case you were wondering, Python’s built-in LRU cache function decorator doesn’t cache function calls with the same keyword arguments written in a different order.  That is, if you cache a function and then call it twice, with the same keyword arguments but written in a different order, on the second call you won’t get the cached result and the function will be re-run.
proof/example

Let’s construct an example.  We’re interested in keyword arguments, so we’ll make our function only take keyword arguments (1).  We want some side-effect to tell us whether it was a cache hit or miss, so we’ll print each keyword when we iterate over it (2).  We want to cache a result, so we’ll return the sum of the values of the keyword arguments (3).  Finally, we apply the lru_cache decorator to the function with a maxsize=None to let the cache grow unbounded.  Putting all that together, we get:


## os_renaissance.json
{
	"origin": ["#color# #animal# #os#"],
	"color": ["Blue", "Green", "Red", "Yellow", "Orange", "Maroon", "Pink", "Black", "White"],
	"animal": ["Lion", "Bear", "Seal", "Shark", "Dolphin", "Eagle", "Falcon", "Rhino", "Wolf", "Elk", "Ox", "Rabbit", "Trout"],
	"os": ["OS/2", "DOS", "RISC OS", "AmigaOS", "NeXTSTEP", "BeOS", "Plan 9", "CTOS", "CP/M", "HP-UX", "TOPS-20", "Ultrix", "Multics", "Minix", "Xinu"]
}


## go_multiple_return.go
package main

import "fmt"

var m = map[string]int{"a": 1, "b": 2, "c": 3}

func lookup(k string) (int, bool) {
	// Can't do this :(
	//
	//return m[k]

## prctx.go
// Print context of string around a point

func prctx(buf string, point int) {
	if point < 0 || point >= len(buf) {
		log.Printf("context for point: out of bounds (%d/%d)", point, len(buf))
		return
	}

	min := func(a int, b int) int {
		if a < b {

## remote_env_vars.sh
#!/usr/bin/env bash

# A couple of handy bash functions that I have in my .bashrc:

# get_env uses ssh to copy an environment variable from a remote
# server to your current machine.  Example usage:
#
#   get_env SOME_VAR_NAME example.com
get_env () {
	VARNAME=$1

## lodash_groupby_style.md

      
              1 file
            
          
              0 forks
            
          
              2 comments
            
          
              0 stars
            
          
                noahlt
                / lodash_groupby_style.md
            
            
              Created
              May 11, 2016 17:50
            
          
    A bit easier to read:
var installed = WindowController.getInstalledPlugins();
return {
  installedPlugins: _.intersection(conf.SUPPORTED_EDITORS, installed),
  uninstalledPlugins: _.difference(conf.SUPPORTED_EDITORS, installed),
}

  
## SafeReactComponent.js
var React = require('react');
var _ = require('underscore');

// Catches errors in render() and returns null so that we don't
// break the entire React app.
var SafeReactComponent = function(classObj) {
  var originalRender = classObj.render;
  var displayName = classObj.displayName || 'unknown component';
  return React.createClass(_.extend(classObj, {
    render: function() {

## pick.py
def pick(d, filter_tree):
    '''Returns a new dictionary by picking keys/values from d per filter_tree.
    Works recursively: values in filter_tree can be either True or dictionaries
    which are their own filters.

    >>> d = {'a': 1, 'b': 2, 'c': {'foo': -1, 'bar': -2}, 'd': {'r': 'red', 'b': 'blue'}}
    >>> pick(d, {'a': True, 'b': True})
    {'a': 1, 'b': 2}
    >>> pick(d, {'a': True, 'b': True, 'd': True})
    {'a': 1, 'b': 2, 'd': {'r': 'red', 'b': 'blue'}}

## react_dont_update_children.html
<!DOCTYPE html>
<html>
<head>
<title>Hack to block re-rendering child when parent was updated</title>
<script src="https://fb.me/react-0.13.0.js"></script>
<script src="https://fb.me/JSXTransformer-0.13.0.js"></script>
</head>
<body>
</body>
	OH SHIT THAT SOMETIMES HAPPENS



	SAM: yo, can you help me out

	CHUCK: hey what do you need

	SAM: I don’t know if I told you but I recently became a camp counselor
	{
	"origin": ["#color# #animal# #os#"],
	"color": ["Blue", "Green", "Red", "Yellow", "Orange", "Maroon", "Pink", "Black", "White"],
	"animal": ["Lion", "Bear", "Seal", "Shark", "Dolphin", "Eagle", "Falcon", "Rhino", "Wolf", "Elk", "Ox", "Rabbit", "Trout"],
	"os": ["OS/2", "DOS", "RISC OS", "AmigaOS", "NeXTSTEP", "BeOS", "Plan 9", "CTOS", "CP/M", "HP-UX", "TOPS-20", "Ultrix", "Multics", "Minix", "Xinu"]
	}
	package main

	import "fmt"

	var m = map[string]int{"a": 1, "b": 2, "c": 3}

	func lookup(k string) (int, bool) {
	// Can't do this :(
	//
	//return m[k]
	// Print context of string around a point

	func prctx(buf string, point int) {
	if point < 0 \|\| point >= len(buf) {
	log.Printf("context for point: out of bounds (%d/%d)", point, len(buf))
	return
	}

	min := func(a int, b int) int {
	if a < b {
	#!/usr/bin/env bash

	# A couple of handy bash functions that I have in my .bashrc:

	# get_env uses ssh to copy an environment variable from a remote
	# server to your current machine. Example usage:
	#
	# get_env SOME_VAR_NAME example.com
	get_env () {
	VARNAME=$1
	var React = require('react');
	var _ = require('underscore');

	// Catches errors in render() and returns null so that we don't
	// break the entire React app.
	var SafeReactComponent = function(classObj) {
	var originalRender = classObj.render;
	var displayName = classObj.displayName \|\| 'unknown component';
	return React.createClass(_.extend(classObj, {
	render: function() {
	def pick(d, filter_tree):
	'''Returns a new dictionary by picking keys/values from d per filter_tree.
	Works recursively: values in filter_tree can be either True or dictionaries
	which are their own filters.

	>>> d = {'a': 1, 'b': 2, 'c': {'foo': -1, 'bar': -2}, 'd': {'r': 'red', 'b': 'blue'}}
	>>> pick(d, {'a': True, 'b': True})
	{'a': 1, 'b': 2}
	>>> pick(d, {'a': True, 'b': True, 'd': True})
	{'a': 1, 'b': 2, 'd': {'r': 'red', 'b': 'blue'}}
	<!DOCTYPE html>
	<html>
	<head>
	<title>Hack to block re-rendering child when parent was updated</title>
	<script src="https://fb.me/react-0.13.0.js"></script>
	<script src="https://fb.me/JSXTransformer-0.13.0.js"></script>
	</head>
	<body>
	</body>