assets/scripts/debugbar/core.js
function (event) {
		event.preventDefault();
		if (!currentElement) {
			return;
		}
		var newHeight = currentElement.data('startHeight') + (event.pageY - currentElement.data('startY'));
		currentElement.parent().height(newHeight);
	}
function (event) {
		event.preventDefault();
		if (!currentElement) {
			return;
		}
		var newHeight = currentElement.data('startHeight') + (event.pageY - currentElement.data('startY'));
		currentElement.parent().height(newHeight);
	}
function ( event ) { event . preventDefault ( ) ; if ( ! currentElement ) { return ; } var newHeight = currentElement . data ( 'startHeight' ) + ( event . pageY - currentElement . data ( 'startY' ) ) ; currentElement . parent ( ) . height ( newHeight ) ; }
Use the elements startHeight stored Event.pageY and current Event.pageY to resize the panel.
Use the elements startHeight stored Event . pageY and current Event . pageY to resize the panel .