How to get the height of slider box immediately?

ionic-v1
1

Hi,

I am newbie of ionic, i can’t figure out how to get the height of slider box immediately.

here is the codes:

<ion-slide-box on-slide-changed="slideHasChanged($index)" does-continue="true" auto-play="true" slide-interval="4500">
            <ion-slide>
                <a href="#">
                    <img src="img/trial/example/slider-1.jpg" alt="">
                </a>
            </ion-slide>
 </ion-slide-box>

js:

ionic.DomUtil.ready(function(){
	console.log($('.slider').height());
});

I can’t get the correct height of the slidebox, it always returns the wrong value.

plz help me. thx.