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March 17, 2018 15:43
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do NOT forget `return`
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| function commonParentNode(oNode1, oNode2) { | |
| if (oNode1.contains(oNode2)) { | |
| return oNode1; | |
| } else { | |
| return commonParentNode(oNode1.parentNode, oNode2); | |
| } | |
| } |
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