I am experimenting with a more functional style in my JavaScript; therefore, I have replaced for loops with utility functions such as map and reduce.  However, I have not found a functional replacement for while loops since tail call optimization i...
Is there a javascript equivalent of Python's zip function?  That is, given multiple arrays of equal lengths create an array of pairs.  For instance, if I have three arrays that look like this:  var array1 = [1, 2, 3]; var array2 = ['a',...
How would you implement the Cartesian product of multiple arrays in JavaScript?  As an example,  cartesian([1, 2], [10, 20], [100, 200, 300])    should return  [   [1, 10, 100],   [1, 10, 200],   [1, 10, 300],   [2, 10, 100],   [2, 10, 200]   ... ]...
I need to split a JavaScript array into n sized chunks.  E.g.: Given this array  ["a1", "a2", "a3", "a4", "a5", "a6", "a7", "a8", "a9", "a10", "a11", "a12&#...
I have looked at similar questions and answers and have not found an answer that directly addresses my question. I am struggling to understand how to use Maybe or Eitheror Monads in conjunction with piping functions. I want to pipe functions togeth...
In Javascript, how can one determine the number of formal parameters defined for a function?  Note, this is not the arguments parameter when the function is called, but the number of named arguments the function was defined with.  function zero() {...
I'm brand new to Rx and am finding it difficult to find documentation on composing promises such that data from the first promise is passed into the second and so on. Here's three very basic promises, the calculations on the data aren't...
I really like chaining Array.prototype.map,  filter and reduce to define a data transformation. Unfortunately, in a recent project that involved large log files, I could no longer get away with looping through my data multiple times...  My goal:  I w...
I am looking get to grips with functional programming concepts.  I've used Javascript for many years for client side scripting in web applications and apart from using prototypes it was all simple DOM manipulation, input validation etc.    Of lat...

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