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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(); }
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