‘首次‘

2023-08-30 09:44:26 +08:00
parent c119608fb2
commit cfd272743d
236 changed files with 33203 additions and 0 deletions
@@ -0,0 +1,28 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.now = exports.isPerformanceSupported = void 0;
+let supported;
+let perf;
+function isPerformanceSupported() {
+    var _a;
+    if (supported !== undefined) {
+        return supported;
+    }
+    if (typeof window !== 'undefined' && window.performance) {
+        supported = true;
+        perf = window.performance;
+    }
+    else if (typeof global !== 'undefined' && ((_a = global.perf_hooks) === null || _a === void 0 ? void 0 : _a.performance)) {
+        supported = true;
+        perf = global.perf_hooks.performance;
+    }
+    else {
+        supported = false;
+    }
+    return supported;
+}
+exports.isPerformanceSupported = isPerformanceSupported;
+function now() {
+    return isPerformanceSupported() ? perf.now() : Date.now();
+}
+exports.now = now;