20 lines
703 B
Markdown
20 lines
703 B
Markdown
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---
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sidebar_label: FrameWaitForFunctionOptions.polling
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---
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# FrameWaitForFunctionOptions.polling property
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An interval at which the `pageFunction` is executed, defaults to `raf`. If `polling` is a number, then it is treated as an interval in milliseconds at which the function would be executed. If `polling` is a string, then it can be one of the following values:
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- `raf` - to constantly execute `pageFunction` in `requestAnimationFrame` callback. This is the tightest polling mode which is suitable to observe styling changes.
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- `mutation` - to execute `pageFunction` on every DOM mutation.
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**Signature:**
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```typescript
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interface FrameWaitForFunctionOptions {
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polling?: string | number;
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}
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```
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