puppeteer/docs/api/puppeteer.elementhandle.waitforxpath.md

65 lines
2.3 KiB
Markdown

---
sidebar_label: ElementHandle.waitForXPath
---
# ElementHandle.waitForXPath() method
Wait for the `xpath` within the element. 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.
If `xpath` starts with `//` instead of `.//`, the dot will be appended automatically.
This method works across navigation
```ts
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();
})();
```
**Signature:**
```typescript
class ElementHandle {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; } | <i>(Optional)</i> Optional waiting parameters |
**Returns:**
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.