cljs.spec.alpha/explain-data

function

previously cljs.spec/explain-data

clojure.spec.alpha/explain-data

Edit

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Source docstring:

Given a spec and a value x which ought to conform, returns nil if x
conforms, else a map with at least the key ::problems whose value is
a collection of problem-maps, where problem-map has at least :path :pred and :val
keys describing the predicate and the value that failed at that
path.

(defn explain-data
  [spec x]
  (explain-data* spec [] (if-let [name (spec-name spec)] [name] []) [] x))

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