Delete all orders from a shopify store admin panel.

shopify_delete_orders.js

//Run this from /admin/orders/. Paste it into the javascript console and press enter.
function delete_all()
{
	l = $("[name*=order_ids_]");
	console.log("Found "+l.length+" checkboxes");
	for(i=0; i<l.length; i++)
	{
		name = $(l[i]).attr("name");
		if(name.indexOf("order_ids_") > -1)
		{
			d = name.split("order_ids_");
			u = '/admin/orders/'+d[1];
			console.log("Posting delete to "+u);
			$.post({'url':u, 'data':{'_method':'delete'}})
			console.log(d[1]);
		}
	}
}
delete_all();