Idea Ultimate includes all WebStorm stuff, so, if you have Idea license already, purchasing WebStorm makes no sense (unless you need a lightweight IDE that is more focused on a subset of technology/features). All you can do in WebStorm you can do equally well in IDEA.
Idea Ultimate includes all WebStorm stuff, so, if you have Idea license already, purchasing WebStorm makes no sense (unless you need a lightweight IDE that is more focused on a subset of technology/features). All you can do in WebStorm you can do equally well in IDEA.
For more information on how our IDEs differ from each other, check out this side-by-side comparison page.