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freesewing/sites/dev/docs/reference/hooks/prelayout
Joost De Cock ab3204f9f1 chore: Port FreeSewing.dev to docusaurus
The replaces the NextJS site powering FreeSewing.dev with a Docusaurus
setup. It's part of my efforts to simplify FreeSewing's setup so we can
focus on our core value proposition.
2024-09-28 13:13:48 +02:00
..
readme.mdx

---
title: preLayout
---

The `preLayout` lifecycle hook runs just before the pattern layout is
calculated.

This is a good place to do any business that might change the layout but relies on all the parts having been drafted

## Signature

```js
null hook(Pattern pattern)
```

## Example

```js
pattern.on('preLayout', pattern => {
  // Mutate the pattern object here
}
```

## Notes

The `postLayout` hook is rarely used, but it's there if you need it.