@dash0/sdk-web/dist/modules/utils/time.js

Dash0's Web SDK to collect telemetry from end-users' web browsers

import { perf } from "./globals";
export function now() {
    return new Date().getTime();
}
export function nowNanos() {
    const timeOrigin = getTimeOrigin();
    if (timeOrigin) {
        return String((perf.now() + timeOrigin) * 1000000);
    }
    return toNanosTs(new Date());
}
export function toNanosTs(time) {
    if (typeof time === "object") {
        return toNanosTs(time.getTime());
    }
    // We don't multiply, because we want to keep number precision
    return String(time) + "000000";
}
export function getTimeOrigin() {
    let timeOrigin = perf?.timeOrigin;
    if (typeof timeOrigin !== "number") {
        timeOrigin = perf?.timing?.fetchStart;
    }
    return timeOrigin;
}
export function domHRTimestampToNanos(ts) {
    return String(Math.round((ts + getTimeOrigin()) * 1000000));
}