Protonk

var approx = function(a, b, eps) {
  // http://en.wikipedia.org/wiki/Machine_epsilon
  eps = eps || 5e-16;
  return |a - b| < eps;
}

approx(0.1 * 0.2, 0.02) // true

oyvindkinsey

Core implementation needed for ES5 to ES3 transforms using 'jspatch'

1. Install jsgrep
2. Convert your source code using node spatch-cli.js es5-to-es3.spatch source.js // yields the converted source
3. Prepare the implementation of ES5 by implemeting the missing polyfills in es5.js
4. Concat es5.js and the converted code
5. Wrap the result of the previous steps in a closure and export your object

desandro

// modified John Resig's http://ejohn.org/projects/flexible-javascript-events/

var div = document.createElement('div');

var addEvent, removeEvent;

if ( div.addEventListener ) {
  addEvent = function( elem, type, fn ) {
    elem.addEventListener( type, fn, false );
  };

shazow

requirements: requirements.txt.out

requirements.txt.out: requirements.txt
	pip install -r requirements.txt | tee requirements.txt.out

jameswomack

Function.prototype.runOnBackgroundThread = function (aCallback) {
  var _blob = new Blob(['onmessage = '+this.toString()],{"type":"text/javascript"});
  var _worker = new Worker((webkitURL.createObjectURL || URL.createObjectURL)(_blob));
  _worker.onmessage = aCallback;
  _worker.postMessage();
}

var _test = function () {
  postMessage((1+1).toString());
}

getify

// NOTE: only escapes a " if it's not already escaped
function escapeDoubleQuotes(str) {
	return str.replace(/\\([\s\S])|(")/g,"\\$1$2"); // thanks @slevithan!
}

escapeDoubleQuotes(`ab`);          // ab  =>  ab           (nothing escaped)
escapeDoubleQuotes(`a"b`);         // a"b  =>  a\"b
escapeDoubleQuotes(`a\\"b`);       // a\"b  =>  a\"b       (nothing escaped)
escapeDoubleQuotes(`a\\\\"b`);     // a\\"b  =>  a\\\"b
escapeDoubleQuotes(`a\\\\\\"b`);   // a\\\"b  =>  a\\\"b   (nothing escaped)

vasilisvg

#Retina images Sharpness is relative. We can only observe if something is really sharp if we can see it next to something that's sharper. Lots of people are looking for solutions for the problem that images look blurry on retina displays. All solutions I've seen so far give the advice to send an image that's twice as wide and twice as high to these new screens. Before you start sending these images, be sure to understand that these files will be four times the size of the smaller version. People with a high end device and a low end connection—everybody in the train in The Netherlands—will hate you.

##Image types I'm generalizing here, but there are two types of images: (1) graphics like logos and (2) photos. Quadroupled images might be justified for the first kind, for logos, icons, things like that. You could also try to find a solution in clever SVG files—with media queries in them, why not? These kinds of ima

mfenniak

import os.path
import contextlib
import hashlib
from flask import Flask
from flask.helpers import safe_join

# Injects an "h" parameter on the URLs of static files that contains a hash of
# the file.  This allows the use of aggressive cache settings on static files,
# while ensuring that content changes are reflected immediately due to the
# changed URLs.  Hashes are cached in-memory and only checked for updates when

kennethreitz

# -*- coding: utf-8 -*-

import os

from flask import Flask

from flask_heroku import Heroku
from flask_sslify import SSLify
from raven.contrib.flask import Sentry
from flask.ext.celery import Celery

pamelafox

import urllib
import settings
try:
	import json
except ImportError:
	import simplejson as json


class YahooException(Exception): 
	pass