refactor: avoid delete usage

Signed-off-by: Jérôme Benoit <[email protected]>

Author: jerome-benoit

deno.json

@@ -3,9 +3,7 @@
   "version": "0.5.7",
   "exports": "./src/mod.ts",
   "compilerOptions": {
-    "lib": [
-      "deno.worker"
-    ],
+    "lib": ["deno.worker"],
     "strict": true
   },
   "tasks": {
@@ -27,9 +25,7 @@
     "documentation": "deno doc ./src/mod.ts"
   },
   "test": {
-    "include": [
-      "./tests/**/*.test.mjs"
-    ]
+    "include": ["./tests/**/*.test.mjs"]
   },
   "fmt": {
     "semiColons": false,
@@ -42,18 +38,8 @@
     "@std/testing": "jsr:@std/testing@^1.0.14"
   },
   "publish": {
-    "include": [
-      "LICENSE",
-      "README.md",
-      "deno.json",
-      "src/**/*.ts"
-    ]
+    "include": ["LICENSE", "README.md", "deno.json", "src/**/*.ts"]
   },
   "lock": false,
-  "exclude": [
-    "./coverage",
-    "./dist/browser",
-    "./dist/esm",
-    "./npm"
-  ]
+  "exclude": ["./coverage", "./dist/browser", "./dist/esm", "./npm"]
 }

src/pools/selection-strategies/fair-share-worker-choice-strategy.ts

@@ -58,7 +58,9 @@ export class FairShareWorkerChoiceStrategy<
   /** @inheritDoc */
   public reset(): boolean {
     for (const workerNode of this.pool.workerNodes) {
-      delete workerNode.strategyData?.virtualTaskEndTimestamp
+      if (workerNode.strategyData?.virtualTaskEndTimestamp != null) {
+        workerNode.strategyData.virtualTaskEndTimestamp = undefined
+      }
     }
     return true
   }