FlashDevelop vs Light Table

FlashDevelop comes without any cost.

FlashDevelop has first-class support for Haxe development, the open source toolkit based on a modern programming language and cross-platform library.

FlashDevelop's code completion is pretty good.

Although everyone claims Flash is dead, it's still quite useful for game developers due to its rapid compile and run times, as well as its great debugging functionality with FlashDevelop.

While it's project template system is not the best compared to it's competitors, it still is decent and is a good way to generate some boilerplate code.

FlashDevelop has XML/HTML completion aside from code completion.

It's windows only, but has tremendous support from plugin developers and a dedicated team that's been developing it for close to 10 years.

FlashDevelop provides very efficient debugging features.

This is very useful for carrying out high-speed HTML coding and editing.

FlashDevelop facilitates project compilation.

Although the code generation can't really be called top-notch, it's decent and sufficient for most developers.

With LT's inline evaluation, you don't have to re-compile your whole source file. Each time you want to see an output, all you have to do is hover your cursor over the line you'd like to evaluate and press ctrl+enter; LT will evaluate that line of code for you.

The "Watches" feature lets you see your code running live as you type it. This means that you can debug your code live while writing it, which leads to considerably less programming errors.

LT has a plugin manager built directly inside of it. This plugin manager connects to LT's own registry of plugins, so whenever you want assistance while writing your HTML, JS, or even Python, just open up the plugin manager, search for it, and click the little install button beside it's name. Your plugin will then be installed.