Javascript object pooling?

I've never used object pooling before but I'm thinking it might be something I need to do. In the game I'm currently working on there are on average 13,000 instantiated objects at any given time, and every few seconds about a third of those are destroyed and new ones are instantiated in new locations. It's procedural; I'm creating and destroying the environment around the player as they move. From what I've read that sounds like the exact type of thing object pooling is used for.

However,...

Javascript object pooling?