cljs.math/round

function

since v1.11.50

Edit

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Source docstring:

Returns the closest long to a. If equally close to two values, return the one
closer to ##Inf.
If a is ##NaN => 0
If a is ##-Inf => js/Number.MIN_SAFE_INTEGER
If a is ##Inf => js/Number.MAX_SAFE_INTEGER
See: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/round

(defn ^number round
  {:added "1.11.10"}
  [a]
  (cond
    ^boolean (js/isNaN a) 0
    ^boolean (js/isFinite a) (Math/round a)
    (== ##Inf a) js/Number.MAX_SAFE_INTEGER
    :default js/Number.MIN_SAFE_INTEGER))

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