puppeteer/website/versioned_docs/version-10.1.0/puppeteer.page.waitforselector.md

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[Home](./index.md) &gt; [puppeteer](./puppeteer.md) &gt; [Page](./puppeteer.page.md) &gt; [waitForSelector](./puppeteer.page.waitforselector.md)

## Page.waitForSelector() method

Wait for the `selector` to appear in page. If at the moment of calling the method the `selector` already exists, the method will return immediately. If the `selector` doesn't appear after the `timeout` milliseconds of waiting, the function will throw.

This method works across navigations:

```js
const puppeteer = require('puppeteer');
(async () => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
let currentURL;
page
.waitForSelector('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
waitForSelector(selector: string, options?: {
        visible?: boolean;
        hidden?: boolean;
        timeout?: number;
    }): Promise<ElementHandle | null>;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  selector | string | A [selector](https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Selectors) 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 selector string is added to DOM. Resolves to `null` if waiting for hidden: `true` and selector is not found in DOM.

## Remarks

The optional Parameter in Arguments `options` are :

- `Visible`: A boolean 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`: ait 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`: 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.