![]() ![]() Russia’s recent actions contravene decades of commitments by Moscow. The possibility that the conflict could spin out of anyone’s control remains high. Also, Russia’s war on Ukraine has raised profound questions about how states interact, eroding norms of international conduct that underpin successful responses to a variety of global risks.Īnd worst of all, Russia’s thinly veiled threats to use nuclear weapons remind the world that escalation of the conflict-by accident, intention, or miscalculation-is a terrible risk. ![]() The war in Ukraine may enter a second horrifying year, with both sides convinced they can win. Ukraine’s sovereignty and broader European security arrangements that have largely held since the end of World War II are at stake. The Clock now stands at 90 seconds to midnight-the closest to global catastrophe it has ever been. The browser tab is in the background mode.Īll that may increase the minimal timer resolution (the minimal delay) to 300ms or even 1000ms depending on the browser and OS-level performance settings.This year, the Science and Security Board of the Bulletin of the Atomic Scientists moves the hands of the Doomsday Clock forward, largely (though not exclusively) because of the mounting dangers of the war in Ukraine.Please note that all scheduling methods do not guarantee the exact delay.įor example, the in-browser timer may slow down for a lot of reasons: The browser limits the minimal delay for five or more nested calls of setTimeout or for setInterval (after 5th call) to 4ms.Zero delay scheduling with setTimeout(func, 0) (the same as setTimeout(func)) is used to schedule the call “as soon as possible, but after the current script is complete”.Nested setTimeout calls are a more flexible alternative to setInterval, allowing us to set the time between executions more precisely.To cancel the execution, we should call clearTimeout/clearInterval with the value returned by setTimeout/setInterval.args) allow us to run the func once/regularly after delay milliseconds. That limitation comes from ancient times and many scripts rely on it, so it exists for historical reasons.įor server-side JavaScript, that limitation does not exist, and there exist other ways to schedule an immediate asynchronous job, like setImmediate for Node.js. The similar thing happens if we use setInterval instead of setTimeout: setInterval(f) runs f few times with zero-delay, and afterwards with 4+ ms delay. The 4+ ms obligatory delay between invocations comes into play. ![]() If (start + 100 < Date.now()) alert(times) // show the delays after 100msĮlse setTimeout(run) // else re-schedule Times.push(Date.now() - start) // remember delay from the previous call ![]()
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