Gerard Paapu gerardpaapu

Calling methods from a constructor's prototype on objects of another type, is a common pattern in javascript: e.g. using Array::slice to use all or part of the arguments object as an array.

function (first/*, rest... */) {
    var rest = Array.prototype.slice.call(arguments, 1);
    ...
}

I love Coffeescript, but write Javascript

This is an example of why even though I love coffeescript, I still frequently write code in raw javascript.

This is the coffeescript I originally had:

pairs = []

	(var OrderedSet)
	(set! OrderedSet (function (arr ordered? uniq?)
	(set! this.items (arr or #[]))
	(if uniq?.not this.uniquify
	ordered?.not this.sort)
	this))

	(OrderedSet implement #{
	"length": (function () this.items.length)

	var Schemi = (function () {
	function NamedType(name) {
	this.name = name;
	}

	function Into(schema, convert) {
	this.schema = schema;
	this.convert = convert;
	}

	// just thinking about using closures to expose
	// interface and conceal implementation after
	// reading some stuff about lisp, and animation
	// came to mind

	function doNothing () {}

	function createAnimationContext (framerate) {
	// framerate should be in frames per second
	// interval must be in ms per frame

	;;; OrderedSet
	;;; ----------
	;;;
	;;; A Collection class that wraps an Array.
	;;; It maintains immutability, an order, and
	;;; does not contain duplicates
	;;;
	;;; Items of the Ordered Set should implement 'Ord'
	(class OrderedSet
	(constructor (items, ordered, distinct)

	using System;
	using System.Text;
	using System.Web;
	using System.Web.UI;
	using System.Net;
	using System.Collections.Generic;
	using System.Threading;
	using System.Threading.Tasks;
	using System.Web.Script.Serialization;

	function HTMLString (value, safe) {
	if (value instanceof HTMLString)
	return value;

	if (!this instanceof HTMLString)
	return new HTMLString(value, safe);

	if (arguments.length < 1)
	return this;

	<!doctype HTML>
	<head>
	<link href="styles.css" type="text/css" rel="stylesheet" />
	</head>

	<div id="widget">
	<div class="wrap">
	<div id="rating">★★★½ </div>
	<div id="controls"
	style="display: none"

	<script src="http://localhost:8089/loader.js" ></script>
	<script>
	new Poll({
	id: "harry-potter-question",
	question: "Which is the best Harry Potter",
	answers: ["The first one", "The second one", "The Emperor Strikes Back"]
	}).load();
	</script>