Updated the files.

my-app/node_modules/domutils/lib/esm/manipulation.js

@@ -0,0 +1,134 @@
+/**
+ * Remove an element from the dom
+ *
+ * @category Manipulation
+ * @param elem The element to be removed
+ */
+export function removeElement(elem) {
+    if (elem.prev)
+        elem.prev.next = elem.next;
+    if (elem.next)
+        elem.next.prev = elem.prev;
+    if (elem.parent) {
+        const childs = elem.parent.children;
+        const childsIndex = childs.lastIndexOf(elem);
+        if (childsIndex >= 0) {
+            childs.splice(childsIndex, 1);
+        }
+    }
+    elem.next = null;
+    elem.prev = null;
+    elem.parent = null;
+}
+/**
+ * Replace an element in the dom
+ *
+ * @category Manipulation
+ * @param elem The element to be replaced
+ * @param replacement The element to be added
+ */
+export function replaceElement(elem, replacement) {
+    const prev = (replacement.prev = elem.prev);
+    if (prev) {
+        prev.next = replacement;
+    }
+    const next = (replacement.next = elem.next);
+    if (next) {
+        next.prev = replacement;
+    }
+    const parent = (replacement.parent = elem.parent);
+    if (parent) {
+        const childs = parent.children;
+        childs[childs.lastIndexOf(elem)] = replacement;
+        elem.parent = null;
+    }
+}
+/**
+ * Append a child to an element.
+ *
+ * @category Manipulation
+ * @param parent The element to append to.
+ * @param child The element to be added as a child.
+ */
+export function appendChild(parent, child) {
+    removeElement(child);
+    child.next = null;
+    child.parent = parent;
+    if (parent.children.push(child) > 1) {
+        const sibling = parent.children[parent.children.length - 2];
+        sibling.next = child;
+        child.prev = sibling;
+    }
+    else {
+        child.prev = null;
+    }
+}
+/**
+ * Append an element after another.
+ *
+ * @category Manipulation
+ * @param elem The element to append after.
+ * @param next The element be added.
+ */
+export function append(elem, next) {
+    removeElement(next);
+    const { parent } = elem;
+    const currNext = elem.next;
+    next.next = currNext;
+    next.prev = elem;
+    elem.next = next;
+    next.parent = parent;
+    if (currNext) {
+        currNext.prev = next;
+        if (parent) {
+            const childs = parent.children;
+            childs.splice(childs.lastIndexOf(currNext), 0, next);
+        }
+    }
+    else if (parent) {
+        parent.children.push(next);
+    }
+}
+/**
+ * Prepend a child to an element.
+ *
+ * @category Manipulation
+ * @param parent The element to prepend before.
+ * @param child The element to be added as a child.
+ */
+export function prependChild(parent, child) {
+    removeElement(child);
+    child.parent = parent;
+    child.prev = null;
+    if (parent.children.unshift(child) !== 1) {
+        const sibling = parent.children[1];
+        sibling.prev = child;
+        child.next = sibling;
+    }
+    else {
+        child.next = null;
+    }
+}
+/**
+ * Prepend an element before another.
+ *
+ * @category Manipulation
+ * @param elem The element to prepend before.
+ * @param prev The element be added.
+ */
+export function prepend(elem, prev) {
+    removeElement(prev);
+    const { parent } = elem;
+    if (parent) {
+        const childs = parent.children;
+        childs.splice(childs.indexOf(elem), 0, prev);
+    }
+    if (elem.prev) {
+        elem.prev.next = prev;
+    }
+    prev.parent = parent;
+    prev.prev = elem.prev;
+    prev.next = elem;
+    elem.prev = prev;
+}
+//# sourceMappingURL=manipulation.js.map