cdixon

Candidates for next platforms after PCs, phones, and tablets:
  Virtual reality
  Internet of things
  Wearable computers
  Cryptocurrencies / blockchain
  Self-driving cars
  Drones
  Brain-computer interfaces
  3d printing
  Augmented reality

chaitanyagupta

Reader Macros in Common Lisp

This post also appears on lisper.in.

Reader macros are perhaps not as famous as ordinary macros. While macros are a great way to create your own DSL, reader macros provide even greater flexibility by allowing you to create entirely new syntax on top of Lisp.

Paul Graham explains them very well in [On Lisp][] (Chapter 17, Read-Macros):

The three big moments in a Lisp expression's life are read-time, compile-time, and runtime. Functions are in control at runtime. Macros give us a chance to perform transformations on programs at compile-time. ...read-macros... do their work at read-time.

ryanking

# Ever get tired of people messing with your ruby classes?
# now you can put the hammer down and stop them. Just 
# include this module and no one will be able to modify the 
# class implementation or any instance implementations.


module Stop
  module CantTouchThis
    def self.included(mod)

abeppu

var Twit = require("twit");
var config = require('./oauthconfig'); 

console.log("config:");
console.log(config);

var T = new Twit({
    consumer_key:  config.consumer_key,
    consumer_secret: config.consumer_secret,
    access_token: config.access_token,

PaulKinlan

(function() { 
  var CSSCriticalPath = function(w, d, opts) {
    var opt = opts || {};
    var css = {};
    var pushCSS = function(r) {
      if(!!css[r.selectorText] === false) css[r.selectorText] = {};
      var styles = r.style.cssText.split(/;(?![A-Za-z0-9])/);
      for(var i = 0; i < styles.length; i++) {
        if(!!styles[i] === false) continue;
        var pair = styles[i].split(": ");

hepwori

#!/bin/bash

LAYOUT=sfdp
SIZE=300

echo `date`: Producing graph
cat mutual_uoi_follows | perl -ne 's/(\w+)\t(\w+)/"\1"\t->\t"\2"/ and print' | samp 1 | graphify > graph.gv

echo `date`: Splitting out largest connected component
cat graph.gv | ccomps -zX#0 > graph-cc0.gv

erikeldridge

require 'rubygems'
require 'oauth'
require 'awesome_print'
require 'uri'

# Usage:
# 1) Get consumer key/secret from https://dev.twitter.com/apps
# 2) Run ruby oauth_util.rb https://api.twitter.com/statuses/home_timeline.json
# 3) Authorize as instructed
# 4) $$$

JoshuaEstes

Moved to https://github.com/JoshuaEstes/CheatSheets

niallkennedy

var isVisible = false;
function onVisible() {
	isVisible = true;
	jQuery.getScript("http://www.google-analytics.com/ga.js");
}

if ( document.webkitVisibilityState === undefined || document.webkitVisibilityState === "visible" ) {
	onVisible();
} else {
	jQuery.bind( "webkitvisibilitychange", function() {

ryanking

# Ever get tired of people messing with your ruby classes?
# now you can put the hammer down and stop them. Just 
# include this module and no one will be able to modify the 
# class implementation or any instance implementations.


module Stop
  module CantTouchThis
    def self.included(mod)