@problem: When I have no control on some ajax or generated html and I need to wait for them. @Solution: Set an interval to check my conditions and them execute a callback.

waitFor.js

@Problem:  When I have no control on some ajax or generated html and I need to wait for them.
@Solution: Set an interval to check my conditions and them execute a callback.

function waitFor ( options ) {
    options = $.extend( {}, {
        callback: function(){},
        condition: function(){ return true },
        interval: 100
    }, options);

    options.intervalId = setInterval(function() {

        if( options.condition() ) {
            clearInterval( options.intervalId );

            options.callback();
        }

    }, options.interval );
}

@Sample
waitFor({
    condition: function(){
        return $( '#id' ).length
    },
    callback: function(){
        $( '#id' ).text( 'test' );
    },
    interval: 200
});

Suggestions??

Superagent's end() method's does that on Ajax Calls. Check it out.

http://visionmedia.github.io/superagent/

Cool! But i need just the ugly part. :)