CODEWITHSUNDEEP
javascriptfirefoxfirebug
JosEvora
JosEvora

Reputation: 134

Is there a Time Limit for a JS script to run on the Browser Console or FireBug Console?

I'm using the firebug console to test a script... Right at the start of my script i have an option on the number of times i want the script to run!

My problem is:

notes:

example of code:

var x = prompt("How many times should this script be runned?");
alert("It will be runned " + x + " times then!");

function doThis() {
    setTimeout(function(){
        ...;
        ++n;
        --x;
        action();
    },65000);
}

function doThat() {
    setTimeout(function(){
        ...;
        ++n;
        --x;
        action();
    },65000);
}

function action() {
    if(x>0) {

        if(...) {
            if(n<6){                
            doThis();
            }
            } else  {
            if(n<6){                
            doThat();
            }
        }
    } else {
        alert("The Script has ended!");
    }

action();

Upvotes: 0

Views: 1518

Answers (1)

jfriend00
jfriend00

Reputation: 707766

Yes, most browsers today have a time limit on how long a script can run before it returns control back to the user. This is to prevent an errant or deviant script from "hanging" that browser window.

One can typically work around it by putting a smaller timer between runs. This gives the browser a chance to service it's event loop and prevents the prompt about running too long.

I shoot for a chunk of work taking no longer than 10 seconds or so and that is way below the threshold of all browsers. Here are some previous answers about breaking your work into chunks separated by a short timer interval so things can run basically forever.

Best way to iterate over an array without blocking the UI

Avoiding "Unresponsive Script" message in a foreach loop

Best way to iterate over an array without blocking the UI

Upvotes: 1

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