What does this.parentNode.parentNode (parent node of parent node) mean?
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The parent node of the parent node, for example, there is such a paragraph HTML: Copy code The code is as follows:<form id="form"> <div id="divA"> <div id="divB"> <input type="button" value="Delete" onClick="deleteMe(this.parentNode.parentNode);"> </div> </div> </form> In this case, this.parentNode is divB, and this.parentNode.parentNode is divA. The so-called parentNode is the node on the previous layer. |
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