feat: rename prime to random

apps/performance/christmas-web-worker/src/app/heavy-calculation.service.ts

@@ -0,0 +1,30 @@
+import { Injectable, computed, signal } from '@angular/core';
+
+@Injectable()
+export class HeavyCalculationService {
+  private finalLength = 664579;
+  private loadingLength = signal(0);
+
+  loadingPercentage = computed(
+    () => (this.loadingLength() * 100) / this.finalLength
+  );
+
+  startLoading() {
+    this.randomHeavyCalculalationFunction();
+  }
+
+  private randomHeavyCalculalationFunction() {
+    for (let num = 2; num <= 10000000; num++) {
+      let randomFlag = true;
+      for (let i = 2; i <= Math.sqrt(num); i++) {
+        if (num % i === 0) {
+          randomFlag = false;
+          break;
+        }
+      }
+      if (randomFlag) {
+        this.loadingLength.update((l) => l + 1);
+      }
+    }
+  }
+}