assoc

assoc[iate]. When applied to a map, returns a new map of the same (hashed/sorted) type, that contains the mapping of...

assoc-in

Associates a value in a nested associative structure, where ks is a sequence of keys and v is the new value and return...

conj

conj[oin]. Returns a new collection with the xs 'added'. (conj nil item) returns (item). (conj coll) returns col...

cons

Returns a new seq where x is the first element and seq is the rest.

disj

disj[oin]. Returns a new set of the same (hashed/sorted) type, that does not contain key(s).

dissoc

dissoc[iate]. Returns a new map of the same (hashed/sorted) type, that does not contain a mapping for key(s).

pop

For a list or queue, returns a new list/queue without the first item, for a vector, returns a new vector without the l...

update

'Updates' a value in an associative structure, where k is a key and f is a function that will take the old value and...

update-in

'Updates' a value in a nested associative structure, where ks is a sequence of keys and f is a function that will take...