Remove string instances from collection

Question

I have this collection

("string" {:1 a} "string" {:2 b} "string")

I want to only return elements that are maps.

As so,

({:1 a} {:2 b})

Answer 1

If your intention is to remove strings in the list, you use remove and sting? predicate. This is pretty straightforward.

user=> (remove string? '("string" {:1 a} "string" {:2 b} "string"))
({:1 a} {:2 b})

If your intention is to remove elements other than map, then you'd better use filter and map? predicate, as in @Reut's answer.

Answer 2

Using filter maybe?

(filter map? coll)

Output:

({:1 3} {:2 4})