ripter

General

• What JS libraries have you used?
  • Why that over X?
• What JS tempting libraries have you used?
• How do you organize your code?
• Have you used CoffeeScript?
  • What do you like/dislike about it?
  • Advantages/Disadvantages over JavaScript?

ripter

function formatNumber(num) {
    var thousands = ',';
    var decimal = '.';
    
    var numStr = '' + num;
    var formatted = '';
    
    if (typeof num !== 'number') {
        throw new Error('Must pass a number, received "' + num + '" instead.');
    }

ripter

#What is a compose method? Compose takes a series of single parameter functions that are used as the parameters for the previous functions. The last function can take any number of parameters.

Code example:

function text(a) {
    return 'item: ' + a;
}
function hello(a) {
    return 'Hello ' + a;

ripter

#What is the difference between Curry and Partial? This seems like a confusing topic for a lot of people. I actually had a really hard time trying to understand the difference between the two. A lot of people think they are the same thing, or that currying is just a special form of partial application.

• What is the difference between currying and partial application, stackoverflow
• Partial Function Application is not Currying
• Currying vs Partial Application

##So what is currying? When you curry a function, it returns a function that calls another function for every parameter. Currying creates a series of single parameter functions. Some code examples should clear this up.

ripter

Underscore supports partials with _.bind(), the only downside is that you have to always pass this. So I wanted to see how hard it would be to create my own version of partial.

This is of course a silly exercise, ECMAScript 5th Edition provides a fun.bind() method that _.bind() will use that if you have at least IE 9. I just find always passing the this parameter ugly and from my understanding of functional programming you shouldn't be using this in a partial anyways.

##Here is my first attempt.

var partial = function(){ var args = Array.prototype.slice.call(arguments), fn = args.shift(); return function(){ return fn.apply(fn, args.concat(Array.prototype.slice.call(arguments) )); }}

ripter

I ordered these by quality/usefulness, so if you don't read the whole thing you probably didn't miss much.

#What would crockford do?

Revoke all software patents. Would like to have.

##Yahoo's problems

Yahoo was dishonest and started becoming a patent troll. This why he left yahoo for PayPal.

ripter

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
                    Version 2, December 2004

 Copyright (C) 2011 YOUR_NAME_HERE <YOUR_URL_HERE>

 Everyone is permitted to copy and distribute verbatim or modified
 copies of this license document, and changing it is allowed as long
 as the name is changed.

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE