clojure.core/drop-while

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Type: function Added: Clojure 1.0 Examples: 2 Runnable: 2

([pred] [pred coll])

Returns a lazy sequence of the items in coll starting from the first item for which (pred item) returns logical false. Returns a stateful transducer when no collection is provided.

Examples

by nipra on 2010-07-17 ▶

;; Note: Documentation should be "starting from the first item for which ;; (pred item) returns logical false, i.e. either of the values false or nil. (drop-while neg? [-1 -2 -6 -7 1 2 3 4 -5 -6 0 1]) (1 2 3 4 -5 -6 0 1)

by ibercode on 2018-02-09 ▶

(def my-vec [1 2 3 4 5 6]) (drop-while #(> 3 %) my-vec) ;;(3 4 5 6) (drop-while #(>= 3 %) my-vec) ;;(4 5 6) ;;Returns a lazy sequence of the items in coll starting from the ;;first item for which (pred item) returns logical FALSE

Note by Jacolyte

The description of this function is throwing me off. I think it should say: returns a sequence of items from coll dropping the initial items that evaluate to true when passed to pred, once a non-true value is encountered, the rest of the list is returned.

See also

• clojure.core/take-while (3)
• clojure.core/split-with (1)
• clojure.core/some (15)

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