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Michael Ficarra michaelficarra

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@michaelficarra
michaelficarra / gist:4f8c25a6aaa87420803a
Created January 22, 2016 02:28
$ eshost host --list
┌──────────────┬─────────┬──────────────────────────────────────────────────┬──────┐
│ name │ type │ path │ args │
├──────────────┼─────────┼──────────────────────────────────────────────────┼──────┤
│ nashorn │ nashorn │ /usr/java/jdk1.8.0_66/bin/jjs │ │
├──────────────┼─────────┼──────────────────────────────────────────────────┼──────┤
│ v8 │ d8 │ /usr/bin/d8 │ │
├──────────────┼─────────┼──────────────────────────────────────────────────┼──────┤
│ jsc │ jsc │ /usr/bin/jsc │ │
├──────────────┼─────────┼──────────────────────────────────────────────────┼──────┤
@michaelficarra
michaelficarra / rt.js
Last active February 1, 2016 01:47
Rotten Tomatoes ratings exfiltrator
console.log(JSON.stringify([].map.call(document.querySelectorAll('.content_body .media-body'), function(ratingEl){
return {
title: ratingEl.childNodes[3].childNodes[1].textContent,
year: parseInt(ratingEl.childNodes[3].childNodes[2].textContent.slice(1, -1), 10),
rt_link: ratingEl.childNodes[3].childNodes[1].href,
rating: 20 * ratingEl.childNodes[5].querySelectorAll('.glyphicon-star').length + (/½/.test(ratingEl.childNodes[5].textContent) ? 10 : 0),
};
}).sort(function(a, b){ return a.title > b.title ? 1 : -1; })));
@michaelficarra
michaelficarra / es6-fd-block-scoping.js
Last active January 16, 2016 17:18
(function () {
var g, h;
function x() { f = ""; /* var-scoped f gets value "" */ }
function y() { g = f; /* g gets value of var-scoped f */ }
{
/* var-scoped f is undefined, let-scoped f is a function */
h = f; /* h gets value of let-scoped f, a function */
f = 1; /* let-scoped f gets value 1 */
x();
y();
@michaelficarra
michaelficarra / pseudo-privates.es5.js
Last active October 12, 2015 22:33
pseudo-private methods using a capabilities-based approach
var ClassName = (function() {
var PRIVATE = {};
function ClassName(state) {
this.state = state;
}
ClassName.prototype.publicMethod = function publicMethod() {
this.privateMethod(PRIVATE, "...");
};
@michaelficarra
michaelficarra / create-function-with-given-arity.js
Last active August 28, 2015 16:25
creating a function with a given name and arity in ES5 vs. ES2015
var apply = Function.prototype.call.bind(Function.prototype.apply);
function createFunctionES5(name, arity, behaviour) {
var params = Array.apply(null, Array(arity)).map(function (x, p) { return "p" + p; }).join(",");
var code = "return function " + name + "(" + params + ") { return apply(f, this, arguments); }";
return Function("apply", "f", code)(apply, behaviour);
}
var define = Object.defineProperty.bind(Object);
@michaelficarra
michaelficarra / simple-templating.js
Created August 11, 2015 23:54
simple templating system built with ES2015 tagged templates
function escapeUsing(escaper) {
return function(literalParts, ...interpolatedParts) {
let s = literalParts[0];
for (let [interpolatedPart, literalPart] of zip(interpolatedParts, literalParts.slice(1))) {
s += escaper(interpolatedPart) + literalPart;
}
return s;
}
}
@michaelficarra
michaelficarra / countdown-timer.html
Last active August 29, 2015 14:24 — forked from anonymous/index.html
countdown timer
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Countdown Timer</title>
<style>
body, html {
display: flex;
align-items: center;
justify-content: center;
@michaelficarra
michaelficarra / Main.hs
Created May 24, 2015 17:00 — forked from paf31/Main.hs
{-# LANGUAGE PolyKinds, KindSignatures, MultiParamTypeClasses #-}
module Main where
class Category (arr :: k -> k -> *) where
id :: arr t t
(.) :: arr b c -> arr a b -> arr a c
instance Category (->) where
id x = x
@michaelficarra
michaelficarra / es6-validations.md
Last active August 29, 2015 14:16

  • ArrayBinding

    • restElement must be BindingIdentifier or null except when ArrayBinding is part of an AssignmentPattern

  • BindingIdentifier

    • name must match the ES6 IdentifierName lexical grammar except when name is "*default*" and BindingIdentifier is the name of a ClassDeclaration or FunctionDeclaration which is the body of an ExportDefault
    • name must not be a reserved word
    • name must not be a future reserved word in strict mode

  • (12.1.1 and 12.14.5.1 and 14.1.2 and 14.4.1) name must not be a restricted word in strict mode

@michaelficarra
michaelficarra / phantom-rows.purs
Created February 25, 2015 17:48
phantom types using rows in PureScript; needs DataKinds to achieve full awesome
module Main where
--data Language = English | Spanish
--data Censored = Censored | NotCensored
--data Encoding = Plain | EncodingA | EncodingB
data English
data Spanish
data Censored