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Create mergeNodes.js #42

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Merged
merged 1 commit into from
Apr 28, 2025
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Create mergeNodes.js #42

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27 changes: 27 additions & 0 deletions Javascript/mergeNodes.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,27 @@
function* mergeNodes(left, right) {
if (!left && !right) return;
if (!left) { yield right; return; }
if (!right) { yield left; return; }

if (left.nodeName !== right.nodeName) {
yield left; yield right; return;
}

const merged = left.cloneNode(false); // 只複製節點本身
Array.from(right.attributes).forEach(attr =>
merged.setAttribute(attr.name, attr.value)); // 屬性覆蓋

merged.textContent = (left.textContent || '') +
(right.textContent || '');

const lChildren = left.childNodes;
const rChildren = right.childNodes;
const len = Math.max(lChildren.length, rChildren.length);

for (let i = 0; i < len; ++i) {
for (const sub of mergeNodes(lChildren[i], rChildren[i])) {
merged.appendChild(sub);
}
}
yield merged;
}