X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Futils.ts;h=f30e175c05dd9b20561f8b82f36beaa93946584e;hb=0d80593b9a7596645612087f687fc6f5cab3101a;hp=b1521c4cdfbddc0fda6b6b13293e51b082396692;hpb=6e9d10db05ac2bbc85373195a5c885d2492fee61;p=poolifier.git

diff --git a/src/utils.ts b/src/utils.ts
index b1521c4c..f30e175c 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -1,6 +1,40 @@
+import type { WorkerChoiceStrategyOptions } from './pools/selection-strategies/selection-strategies-types'
+
 /**
  * An intentional empty function.
  */
-export const EMPTY_FUNCTION: () => void = () => {
+export const EMPTY_FUNCTION: () => void = Object.freeze(() => {
   /* Intentionally empty */
+})
+
+/**
+ * Default worker choice strategy options.
+ */
+export const DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS: WorkerChoiceStrategyOptions =
+  {
+    medRunTime: false
+  }
+
+/**
+ * Compute the median of the given data set.
+ *
+ * @param dataSet - Data set.
+ * @returns The median of the given data set.
+ */
+export const median = (dataSet: number[]): number => {
+  if (Array.isArray(dataSet) && dataSet.length === 1) {
+    return dataSet[0]
+  }
+  const sortedDataSet = dataSet.slice().sort((a, b) => a - b)
+  const middleIndex = Math.floor(sortedDataSet.length / 2)
+  if (sortedDataSet.length % 2 === 0) {
+    return sortedDataSet[middleIndex / 2]
+  }
+  return (sortedDataSet[middleIndex - 1] + sortedDataSet[middleIndex]) / 2
 }
+
+export const isPlainObject = (obj: unknown): boolean =>
+  typeof obj === 'object' &&
+  obj !== null &&
+  obj?.constructor === Object &&
+  Object.prototype.toString.call(obj) === '[object Object]'