meta-next/src/Pool.js

const pools = {}

const create = (cls) => 
{
	const buffer = pools[cls.name]
	if(buffer && buffer.length > 0) {
		return buffer.pop()
	}
	
	const instance = new cls()
	return instance
}

const remove = (instance) => {
	
	const buffer = pools[instance.constructor.name]
	if(!buffer) {
		pools[instance.constructor.name] = [ instance ]
	}
	else {
		buffer = [ instance ]
	}
}

export {
	create, remove
}