puppeteer/website/versioned_docs/version-9.1.1/puppeteer.page.waitforxpath.md
2021-08-10 11:09:48 +01:00

65 lines
2.3 KiB
Markdown

<!-- Do not edit this file. It is automatically generated by API Documenter. -->
[Home](./index.md) &gt; [puppeteer](./puppeteer.md) &gt; [Page](./puppeteer.page.md) &gt; [waitForXPath](./puppeteer.page.waitforxpath.md)
## Page.waitForXPath() method
Wait for the `xpath` to appear in page. If at the moment of calling the method the `xpath` already exists, the method will return immediately. If the `xpath` doesn't appear after the `timeout` milliseconds of waiting, the function will throw.
This method works across navigation
```js
const puppeteer = require('puppeteer');
(async () => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
let currentURL;
page
.waitForXPath('//img')
.then(() => console.log('First URL with image: ' + currentURL));
for (currentURL of [
'https://example.com',
'https://google.com',
'https://bbc.com',
]) {
await page.goto(currentURL);
}
await browser.close();
})();
```
<b>Signature:</b>
```typescript
waitForXPath(xpath: string, options?: {
visible?: boolean;
hidden?: boolean;
timeout?: number;
}): Promise<ElementHandle | null>;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| xpath | string | A [xpath](https://developer.mozilla.org/en-US/docs/Web/XPath) of an element to wait for |
| options | { visible?: boolean; hidden?: boolean; timeout?: number; } | Optional waiting parameters |
<b>Returns:</b>
Promise&lt;[ElementHandle](./puppeteer.elementhandle.md) \| null&gt;
Promise which resolves when element specified by xpath string is added to DOM. Resolves to `null` if waiting for `hidden: true` and xpath is not found in DOM.
## Remarks
The optional Argument `options` have properties:
- `visible`: A boolean to wait for element to be present in DOM and to be visible, i.e. to not have `display: none` or `visibility: hidden` CSS properties. Defaults to `false`.
- `hidden`: A boolean wait for element to not be found in the DOM or to be hidden, i.e. have `display: none` or `visibility: hidden` CSS properties. Defaults to `false`.
- `timeout`: A number which is maximum time to wait for in milliseconds. Defaults to `30000` (30 seconds). Pass `0` to disable timeout. The default value can be changed by using the [Page.setDefaultTimeout()](./puppeteer.page.setdefaulttimeout.md) method.