X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Futils.ts;h=176d2c4f875fb2b3fc695ad419a8398d12467bb5;hb=b9bb3c850ae5c12edf0b356b10693b9eb226ddf7;hp=46ab5051f38ff77eb2fd06c41199bd360b306276;hpb=78cea37e264d5ca527bc42eb056f3b9579a2b2c4;p=poolifier.git

diff --git a/src/utils.ts b/src/utils.ts
index 46ab5051..176d2c4f 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -1,11 +1,43 @@
+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 */
-}
+})
 
 /**
- * An intentional empty object literal.
+ * Default worker choice strategy options.
  */
-export const EMPTY_LITERAL = {}
+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 === 0) {
+    return 0
+  }
+  if (Array.isArray(dataSet) && dataSet.length === 1) {
+    return dataSet[0]
+  }
+  const sortedDataSet = dataSet.slice().sort((a, b) => a - b)
+  return (
+    (sortedDataSet[(sortedDataSet.length - 1) >> 1] +
+      sortedDataSet[sortedDataSet.length >> 1]) /
+    2
+  )
+}
+
+export const isPlainObject = (obj: unknown): boolean =>
+  typeof obj === 'object' &&
+  obj !== null &&
+  obj?.constructor === Object &&
+  Object.prototype.toString.call(obj) === '[object Object]'