I have two selectors

    var allNodes = $(a.historyEntry);

    var errorNodes = $(a.historyEntry.error);

I would like to to find a node before first error node, so I need to find an index of first error node, how to do it?

I tried to use inArray method, but it doesn't work for this

$.inArray(allNodes, errorNodes.first())

or

$.inArray(allNodes, $(errorNodes.first()))

Is there any fast way to do it in jQuery or do I have to use for loop?