CODEWITHSUNDEEP
javascript
DotnetSparrow
DotnetSparrow

Reputation: 27996

jquery code explanation

I have this code and I need an explanation on what it does:

function delaymethod(settings) {
    settings.timeout = settings.timeout || 2000; 
    var start = new Date();

    var id = parent.setInterval(function () {
        if (settings.condition()) {
            parent.clearInterval(id);
            if (settings.success) {
                settings.success();
            }
        }

        var now = new Date();
        if (now - start > settings.timeout) {
            parent.clearInterval(id);

            if (settings.fail) {
                settings.fail();
            } else if (settings.success) {
                settings.success();
            }
        }

    }, 200);

}

Upvotes: -2

Views: 240

Answers (1)

casablanca
casablanca

Reputation: 70701

The code sets a periodic timer (parent.setInterval) that fires every 200 ms. Whenever the timer fires:

  1. It checks settings.condition() and if it is fulfilled, it stops the timer and calls a success() function.

  2. It checks if a timeout has occurred since the timer was originally set (now - start > settings.timeout) and if so, it stops the timer and calls either fail() or success(), whichever is defined.

Upvotes: 1

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