javascript setInterval

Question

a question. If i use setInterval in this manner:

setInterval(\'doSome();\',60000);

am i safe that the doSome() function is tri

Answer 1

About "exact time safety": The following code starts UpdateAll at intervals of RefreshInterval milliseconds, with adjustment each second so that one start occurs at each second at the start of the second. There will be a slight delay for the finite speed of the computer, but errors will not accumulate.

function StartAtEachSecond ()
{
    var OneSecond  = 1000; // milliseconds
    var MinInteral =   50; // milliseconds, estimated safe interval
    var StartTime = OneSecond - (new Date ()).getMilliseconds (); // Time until next second starts.
    if (StartTime < MinInteral) StartTime += OneSecond
    window.setTimeout (StartAtEachSecond, StartTime + MinInteral); // To set up the second after the next.
    for (var Delay = 0.0; Delay < OneSecond - MinInteral; Delay += RefreshInterval) 
    {
        window.setTimeout (UpdateAll, StartTime + Delay); // Runs during the next second.
    }
}