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"use strict";
const HTMLElementImpl = require("./HTMLElement-impl").implementation;
const { childrenByLocalName } = require("../helpers/traversal");
const HTMLCollection = require("../generated/HTMLCollection");
const DOMException = require("../generated/DOMException");
class HTMLTableSectionElementImpl extends HTMLElementImpl {
get rows() {
if (!this._rows) {
this._rows = HTMLCollection.createImpl(this._globalObject, [], {
element: this,
query: () => childrenByLocalName(this, "tr")
});
}
return this._rows;
}
insertRow(index) {
if (index < -1 || index > this.rows.length) {
throw DOMException.create(this._globalObject, [
"Cannot insert a row at an index that is less than -1 or greater than the number of existing rows",
"IndexSizeError"
]);
}
const tr = this._ownerDocument.createElement("tr");
if (index === -1 || index === this.rows.length) {
this._append(tr);
} else {
const beforeTR = this.rows.item(index);
this._insert(tr, beforeTR);
}
return tr;
}
deleteRow(index) {
if (index < -1 || index >= this.rows.length) {
throw DOMException.create(this._globalObject, [
`Cannot delete a row at index ${index}, where no row exists`,
"IndexSizeError"
]);
}
if (index === -1) {
if (this.rows.length > 0) {
const tr = this.rows.item(this.rows.length - 1);
this._remove(tr);
}
} else {
const tr = this.rows.item(index);
this._remove(tr);
}
}
}
module.exports = {
implementation: HTMLTableSectionElementImpl
};
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