perf: optimize median computation implementation

Signed-off-by: Jérôme Benoit <jerome.benoit@sap.com>

diff --git a/src/utils.ts b/src/utils.ts
index 176d2c4f875fb2b3fc695ad419a8398d12467bb5..da1459f96be3877b3faf22913f548b920b4979e3 100644 (file)
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -29,6 +29,9 @@ export const median = (dataSet: number[]): number => {
     return dataSet[0]
   }
   const sortedDataSet = dataSet.slice().sort((a, b) => a - b)
+  if (sortedDataSet.length % 2 === 0) {
+    return sortedDataSet[sortedDataSet.length / 2]
+  }
   return (
     (sortedDataSet[(sortedDataSet.length - 1) >> 1] +
       sortedDataSet[sortedDataSet.length >> 1]) /