| 1 | /** |
| 2 | * Copyright (c) Meta Platforms, Inc. and affiliates. |
| 3 | * |
| 4 | * This source code is licensed under the MIT license found in the |
| 5 | * LICENSE file in the root directory of this source tree. |
| 6 | * |
| 7 | * @flow |
| 8 | */ |
| 9 | |
| 10 | import {TEXT_NODE} from './HTMLNodeType'; |
| 11 | |
| 12 | /** |
| 13 | * Set the textContent property of a node. For text updates, it's faster |
| 14 | * to set the `nodeValue` of the Text node directly instead of using |
| 15 | * `.textContent` which will remove the existing node and create a new one. |
| 16 | * |
| 17 | * @param {DOMElement} node |
| 18 | * @param {string} text |
| 19 | * @internal |
| 20 | */ |
| 21 | function setTextContent(node: Element, text: string): void { |
| 22 | if (text) { |
| 23 | const firstChild = node.firstChild; |
| 24 | |
| 25 | if ( |
| 26 | firstChild && |
| 27 | firstChild === node.lastChild && |
| 28 | firstChild.nodeType === TEXT_NODE |
| 29 | ) { |
| 30 | firstChild.nodeValue = text; |
| 31 | return; |
| 32 | } |
| 33 | } |
| 34 | node.textContent = text; |
| 35 | } |
| 36 | |
| 37 | export default setTextContent; |