frostney’s gists

frostney / gist:4757449

Created February 11, 2013 20:44

Helper function, which either creates an object with empty functions from an object with primitive types or an array - or - converts an object with functions into an object with function and method chaining

	chainedOp = (obj) ->
	result = {}
	resultFunc = (i) ->

	if Array.isArray obj
	(result[i] = -> @) for i in obj
	else
	for key, value of obj
	if typeof value is 'function'
	result[key] = (args... ) ->

frostney / gist:4963372

Created February 15, 2013 20:38

Converts an objects into a query string

	toQueryString = (obj) ->
	queryArray = []

	for key, value of obj
	queryArray.push "#{key}=#{value}"

	queryArray.join('&')

frostney / gist:4963462

Created February 15, 2013 20:54

Bind function one-liner

bind = (func, context) -> -> func.apply(context, arguments)

frostney / gist:4973597

Last active December 13, 2015 20:58

ES6-like string functions (they are not really compatible - like not at all - to the official specification though)

	do (String) ->
	String::contains or= (searchString, position = 0) -> @toString().indexOf(searchString) >= position
	String::startsWith or= (searchString, position = 0) -> @toString.toString().indexOf(searchString) >= position
	String::endsWith or= (searchString, position = @length) -> @toString().lastIndexOf(searchString) is position - searchString.length
	String::repeat or= (count) ->
	newString = ''
	newString += @toString() for [1..count]
	newString
	String::toArray or= -> @toString().split ''
	String::reverse or= -> @toArray().reverse().join ''

frostney / gist:5016824

Created February 22, 2013 21:53

Proof-of-concept for an AMD (Asynchronous module pattern) written in CoffeeScript, inspired by the way how ImpactJS handles modules

	do (window = @) ->
	cache = {}

	window.module = (name) ->
	deps = []

	requires = (dependencies) ->
	deps = if Array.isArray dependencies then dependencies else [dependencies]

	{requires, defines}

frostney / definition.coffee

Created February 22, 2013 22:23

Different approach for an AMD which doesn't have method chaining and looks more ideomatic in a CoffeeScript environment

	do ->
	cache = {}

	window.module = (name, defines) ->
	return undefined unless name and defines

	if typeof defines is 'function' then define = defines else {define, require, context} = defines

	require = [] unless require?
	context = @ unless context?

frostney / gist:5076576

Last active December 14, 2015 11:08

Different approach to properties in CoffeeScript class (CoffeeScript 1.5.0 compatible) Property names are not written as strings

	Function::property = (prop) ->
	for key, value of prop
	Object.defineProperty @prototype, key, value

	Function::staticProperty = (prop) ->
	for key, value of prop
	Object.defineProperty @, key, value

	class MyClass
	privateVar = 5

frostney / classhelper.coffee

Last active December 14, 2015 11:19

Properties in CoffeeScript without modifying the Function prototype, plus it's also compatible to Codo (https://github.com/netzpirat/codo).

	do (root = exports ? this) ->
	'use check'

	root.ClassHelper = (object) ->
	objPrototype = object::

	methods =
	property: (prop) ->
	for key, value of prop
	propObject =

frostney / gist:5126442

Created March 10, 2013 00:13

Small utility library

	do (root = exports ? window.eos or= {}) ->

	root.each = (object, callback) ->
	if Array.isArray object
	callback key, value for value, key in object
	else
	callback key, value for own key, value of object
	null

	root.isEmptyObject = (object) -> Object.keys(object).length is 0

frostney / gist:5427786

Last active February 11, 2024 22:25

RequestAnimationFrame and CancelAnimationFrame as AMD modules

	define('vendors', function() {
	return ['ms', 'moz', 'webkit', 'o'];
	});

	define('requestAnimationFrame', ['root', 'vendors'], function(root, vendors) {
	// frameRate is only used if requestAnimationFrame is not available
	var frameRate = 60;

	var requestAnimationFrame = root.requestAnimationFrame;

Johannes Stein frostney