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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 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;
}
export function now() {
return isPerformanceSupported() ? perf.now() : Date.now();
}