Update randomizeElements.ts

kiomarzsss · Mar 3, 2024 · 9f3d7b3 · 9f3d7b3
1 parent 7b19386
commit 9f3d7b3
Showing 1 changed file with 7 additions and 5 deletions.
diff --git a/src/helpers/randomizeElements.ts b/src/helpers/randomizeElements.ts
@@ -1,6 +1,8 @@
-export function randomizeElements<T>(arr: T[]) {
-    let result = [...arr].sort(() => 0.5 - Math.random() );
-    result = result.slice(0, 100);
-    result = result.sort(() => 0.5 - Math.random() );
-    return result;
+export function randomizeElements<T>(arr: T[]): T[] {
+    const result: T[] = [...arr];
+    for (let i: number = result.length - 1; i > 0; i--) {
+        const j: number = Math.floor(Math.random() * (i + 1));
+        [result[i], result[j]] = [result[j], result[i]];
+    }
+    return result.slice(0, 100);
 }