JavaScript

Truthy and Falsey — Assessing Javascript Booleans

TL;DR!

Booleans can be declared either as Ints, Strings or Boolean primitive types. To correctly evaluate a value from any of these types, we can safely use the following:

Try-Finally in Javascript

The usefulness of the try {} finally {} should not be under-estimated. You do so at your peril. For it is little used, and often misunderstood.

It was introduced in common programming languages of the mid 1980s, where a cleanup mechanism was required for…

Object Literal Conditional Properties

I’m constantly coming up against adding conditional properties to an Object, in an elegant fashion, but always have to end up doing:

var a = {};
if (someCondition) {
    a.b = 5;
}

An Array Or Not An Array; That Is The Question!

Static type checking is a big loss for me, having moved over to Javascript. But not completely — it’s a double edged sword. Javascript’s deficiencies ironically, can also be it’s strengths!

Routing Overloaded Controller Actions in Play Framework 2

Came across an interesting dilema whilst trying to wire up a tree control using Play Framework 2.

The controls api only provides one method for retrieval of initial remote data and also subsequent loading…