逐步完成前后端服务器

frontend/node_modules/@vue/devtools-api/lib/esm/time.js

@@ -0,0 +1,23 @@
+let supported;
+let perf;
+export function isPerformanceSupported() {
+    var _a;
+    if (supported !== undefined) {
+        return supported;
+    }
+    if (typeof window !== 'undefined' && window.performance) {
+        supported = true;
+        perf = window.performance;
+    }
+    else if (typeof globalThis !== 'undefined' && ((_a = globalThis.perf_hooks) === null || _a === void 0 ? void 0 : _a.performance)) {
+        supported = true;
+        perf = globalThis.perf_hooks.performance;
+    }
+    else {
+        supported = false;
+    }
+    return supported;
+}
+export function now() {
+    return isPerformanceSupported() ? perf.now() : Date.now();
+}