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const bindReporter = (
callback,
metric,
reportAllChanges,
) => {
let prevValue;
let delta;
return (forceReport) => {
if (metric.value >= 0) {
if (forceReport || reportAllChanges) {
delta = metric.value - (prevValue || 0);
// Report the metric if there's a non-zero delta or if no previous
// value exists (which can happen in the case of the document becoming
// hidden when the metric value is 0).
// See: https://github.com/GoogleChrome/web-vitals/issues/14
if (delta || prevValue === undefined) {
prevValue = metric.value;
metric.delta = delta;
callback(metric);
}
}
}
};
};
export { bindReporter };
//# sourceMappingURL=bindReporter.js.map
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