clojure.string/last-index-of

function

since v1.7.145

clojure.string/last-index-of

Edit

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Source docstring:

Return last index of value (string or char) in s, optionally
searching backward from from-index or nil if not found.

(defn last-index-of
  ([s value]
   (let [result (.lastIndexOf s value)]
     (if (neg? result)
       nil
       result)))
  ([s value from-index]
   (let [result (.lastIndexOf s value from-index)]
     (if (neg? result)
       nil
       result))))

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