typely

Lightweight (meaning relatively fast) type-checking in CoffeeScript.

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typely
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Readme

typely
A lightweight (read: relatively fast) type-checking library in CoffeeScript.
{overload} = require "typely"

class Multiplier 

total: 1

multiply: overload (match) ->
  match "array", (array) -> @multiply element for element in array
  match "number", (number) -> @total *= number
    
    multiplier = new Multiplier

    multiplier.multiply 2
    multiplier.multiply [ 3, 4, 5 ]

    console.log multiplier.total
    
Typely is limited to checking for types, as per Douglas Crockford's typeOf function0. That is: null, undefined, boolean, number, string, date, regexp, array, object, and function. This limitation allows it to run relatively fast, by simply using as an index a string based on the types of the given arguments and seeing whether it returns a function.

Installation

npm install typely