20 lines
382 B
Markdown
20 lines
382 B
Markdown
---
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title: preRender
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---
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The `preRender` lifecycle hook is triggered just before your pattern is
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rendered to SVG.
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## Signature
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```js
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null hook(Svg svg)
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```
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## Notes
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The `preRender` hook is typically used to change the result of the render, for
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example by adding CSS to the SVG output.
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Like the `postRender` hook, it receives [the SVG object](/api/svg) as its first
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parameter.
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