clj-toolbox.colls — org.clojars.tanelso2/clj-toolbox 2.1.1

Functions for manipulating and traversing collections

any-in? clj

(any-in? pred coll)

Returns true if (pred x) is logical true for any x in coll, else false.

find-first clj

(find-first pred coll)

Returns the first x in coll for which (pred x) returns true. returns nil if none is found

into-map clj

(into-map coll)

(into-map kf coll)

(into-map kf vf coll)

Transforms coll into a hash-map by using (kf x) as the key and (vf x) as the value for each x in coll vf defaults to identity if not provided if only coll is provided, will assume coll is a list of pairs

not-empty? clj

(not-empty? x)

Returns true if x is not empty, else false.

Exists because doing (not (empty? x)) is inefficient

strict-partition clj

(strict-partition n coll)

Like parition, but throws an exception if the number of elements in coll are not evenly divisible by n, instead of partition's behavior of having the last group be too small.

take-range clj

(take-range start
            end
            coll
            &
            {:keys [include-start? include-end?]
             :or {include-start? true include-end? false}})

Returns the part of the coll from index start to end.

Defaults to start being inclusive and end being exclusive, but can be changed with keyword options.