How to Get RowID(TR id) form TD Id

Question

I have TD Id.But i need to get TR id using TD id .How can i get.

Help me on this.

Answer 1

tr是td的父节点：

var tableRowId = document.getElementById("id_of_td").parentNode.id;

Answer 2

TR是TD的父节点，因此您需要执行以下操作：

    var trId=document.getElementById(tdId).parentNode.id;