Functional Programming with Javascript: Library Learning Links

JavaScript Online Free Resources with Functional, API and Working Example Code Focus

Eloquent Javascript, Functional Programming 1st Edition
URL: http://eloquentjavascript.net/1st_edition/chapter6.html

An Introduction to Functional Programming
URL: http://www.srirangan.net/2011-12-functional-programming-in-javascript

Higher Order Functions, Chapter 5, Eloquent Javascript, 2nd Edition
URL: http://eloquentjavascript.net/05_higher_order.html

Functional JavaScript, Four Part Series on Functional Programming Javascript, Leland Richardson

Eloquent JavaScript, Marijn Haverbeke. Second Edition

Javascript, The Definitive Guide:
URL: http://xue.unalmed.edu.co/~caalvare/poli/doc/Oreilly.JavaScript.The.Definitive.Guide.6th.Edition.Apr.2011.pdf


Working Code for Eloquent JavaScript

Don't Be Scared of Functional Programming, Jonathon Morgan, Smashing Magazine, July 2014

Functional Javascript, Sampler, O'Reilly Press
URL: http://cdn.oreillystatic.com/oreilly/booksamplers/9781449360726_sampler.pdf

JavaScript Books with Functional, API and Working Example Code Focus

Functional JavaScript: O'Reilly Press
URL: http://books.google.com/books?id=0Fr_lxPGM6QC&pg=PR18&lpg=PR18&dq=Functional+JavaScript:+O%27Reilly+Press&source=bl&ots=906SLa3Fql&sig=pyn1CoJDf8UgCAGl4CEAfn5ObYI&hl=en&sa=X&ei=RsNKVMKDG4mZyQSv_oCIAw&ved=0CEUQ6AEwBQ#v=onepage&q=Functional%20JavaScript%3A%20O'Reilly%20Press&f=false


Effective Javascript, David Herman, Addison-Wesley
URL: http://books.google.com/books?id=Nz9iAwAAQBAJ&printsec=frontcover&dq=javascript+functional+programming+javascript&hl=en&sa=X&ei=l75KVJGmBoiZyQTktoDQBA&ved=0CFIQ6AEwCQ#v=onepage&q=javascript%20functional%20programming%20javascript&f=false

Functional Programming and Math, What you need to know

Functional programming can be better understood if one understands functional composition concepts that are often taught in precalculus and college algebra. A mathematical functional composition problem requires at least two functions. In a two function problem, the result obtained from evaluating one function is substituted into the dependent variable of another function to obtain the final output. 

For example,  given the two functions

f(x) = x + 2 

g(x) = 3x 

find the composition of g(f(2)) means to first evaluate f(2) and then substitute that value into x of g(x) to obtain the final result. 

Since f(2) = 2 + 2 = 4

Substituting 4 into x in the g(x) equation yields

g(4) = 3*4 = 12 

so g(f(2)) = 12 

Functional composition can be extended to 3 or as many functions as you like. Simply take the output of the function and feed it into the independent variable of another function. Then take that output and feed it into another function. 

Functional programming works along the same math based mindset. Functional programming takes an output of a function, such as a JavaScript function and feeds it  into another function You can chain together as many JavaScript functions as you like.  

Other concepts such as recursion also come into play in functional programming. Recursion, is slightly different than functional composition. Instead of feeding the output of the function into the independent variable of another function, you feed the output of one function back into the independent variable of  the same function. 

Posted By: Mark Stansberry, www.bookmarktutorin.com on Sept 18 2014

BookMarkTutoring.com offers onSite, onCall, onLine and inPerson tutoring in math, science, computer programming and graphic design.