Came up with another way to do the RPN calculator by attaching functions in a JavaScript "dictionary":

// jshint esversion: 6

function add(p) {
    return p.x + p.y;
}

function multiply(p) {
    return p.x * p.y;
}

function subtract(p) {
    return p.x - p.y;
}

function divide(p) {
    return p.x …

Day 1: Decided to play around with a RPN calculator in JavaScript (command-line for now). Right now it reads a pre-parsed array of values (eventually I want to get it so it will take in either string input, or perhaps a simple 4-function graphical calculator. But today I'm starting small …

I think I'm starting to understand JavaScript more. Not necessarily like it, but I'm understanding it.

Been ploughing through Eloquent JavaScript and the more I read in thos book the more I'm understanding what's going on. I can understand why so many folks recommend (and dislike) this book. It really …

> bar = ['width', 'height']
[ 'width', 'height' ]
> bar
[ 'width', 'height' ]  // Nothing up my sleeve
> bar.indexOf['length']
1  // Presto!

In case you haven't guessed what's up here: JavaScript automatically surfaces a value called 'length' in all arrays. So you can get the length of bar by typing bar.length and bar['length' …

Once again I find myself confronted with the peculiarities of JavaScript's type coercion (as explained in the first chapter of Eloquent JavaScript). I ran into these before and it frustrated me how JavaScript would do conversions that were heavily weighted towards strings:

"5" + 1  // Returns '51' because of string concatenation …