build(deps-dev): apply updates

[e-mobility-charging-stations-simulator.git] / src / utils / Utils.ts

diff --git a/src/utils/Utils.ts b/src/utils/Utils.ts
index 717a6e68b6ef76362370474f9f6fa475978e4672..3d8c73bdf0cdbeec9516dd079832587a0696ebba 100644 (file)
--- a/src/utils/Utils.ts
+++ b/src/utils/Utils.ts
@@ -3,7 +3,6 @@ import util from 'node:util';
 
 import clone from 'just-clone';
 
-// import { Constants } from './internal';
 import { Constants } from './Constants';
 import { WebSocketCloseEventStatusString } from '../types';
 
@@ -222,11 +221,11 @@ export class Utils {
     return value == null;
   }
 
-  public static isEmptyArray(object: unknown | unknown[]): boolean {
+  public static isEmptyArray(object: unknown): boolean {
     return Array.isArray(object) && object.length === 0;
   }
 
-  public static isNotEmptyArray(object: unknown | unknown[]): boolean {
+  public static isNotEmptyArray(object: unknown): boolean {
     return Array.isArray(object) && object.length > 0;
   }
 
@@ -337,20 +336,26 @@ export class Utils {
   }
 
   public static median(dataSet: number[]): number {
+    if (Utils.isEmptyArray(dataSet)) {
+      return 0;
+    }
     if (Array.isArray(dataSet) === true && dataSet.length === 1) {
       return dataSet[0];
     }
-    dataSet = dataSet.slice().sort((a, b) => a - b);
-    return (dataSet[(dataSet.length - 1) >> 1] + dataSet[dataSet.length >> 1]) / 2;
+    const sortedDataSet = dataSet.slice().sort((a, b) => a - b);
+    return (
+      (sortedDataSet[(sortedDataSet.length - 1) >> 1] + sortedDataSet[sortedDataSet.length >> 1]) /
+      2
+    );
   }
 
   // TODO: use order statistics tree https://en.wikipedia.org/wiki/Order_statistic_tree
-  public static percentile(dataSet: number[], percentile: number): number | undefined {
+  public static percentile(dataSet: number[], percentile: number): number {
     if (percentile < 0 && percentile > 100) {
       throw new RangeError('Percentile is not between 0 and 100');
     }
     if (Utils.isEmptyArray(dataSet)) {
-      return undefined;
+      return 0;
     }
     const sortedDataSet = dataSet.slice().sort((a, b) => a - b);
     if (percentile === 0 || sortedDataSet.length === 1) {
@@ -360,15 +365,15 @@ export class Utils {
       return sortedDataSet[sortedDataSet.length - 1];
     }
     const percentileIndexBase = (percentile / 100) * (sortedDataSet.length - 1);
-    const percentileIntegerIndex = Math.floor(percentileIndexBase);
-    if (!Utils.isNullOrUndefined(sortedDataSet[percentileIntegerIndex + 1])) {
+    const percentileIndexInteger = Math.floor(percentileIndexBase);
+    if (!Utils.isNullOrUndefined(sortedDataSet[percentileIndexInteger + 1])) {
       return (
-        sortedDataSet[percentileIntegerIndex] +
-        (percentileIndexBase - percentileIntegerIndex) *
-          (sortedDataSet[percentileIntegerIndex + 1] - sortedDataSet[percentileIntegerIndex])
+        sortedDataSet[percentileIndexInteger] +
+        (percentileIndexBase - percentileIndexInteger) *
+          (sortedDataSet[percentileIndexInteger + 1] - sortedDataSet[percentileIndexInteger])
       );
     }
-    return sortedDataSet[percentileIntegerIndex];
+    return sortedDataSet[percentileIndexInteger];
   }
 
   public static stdDeviation(dataSet: number[]): number {