24 lines
No EOL
909 B
Markdown
24 lines
No EOL
909 B
Markdown
# redraw()
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- [Signature](#signature)
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- [How it works](#how-it-works)
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---
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### Signature
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`m.redraw()`
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Argument | Type | Required | Description
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----------- | -------------------- | -------- | ---
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**returns** | | | Returns nothing
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---
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### How it works
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When callbacks outside of Mithril run, you need to notify Mithril's rendering engine that a redraw is needed. External callbacks could be `setTimeout`/`setInterval`/`requestAnimationFrame` callbacks, web socket library callbacks, event handlers in jQuery plugins, third party XHR request callbacks, etc.
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To trigger a redraw, call `m.redraw()`. Note that `m.redraw` only works if you used `m.mount` or `m.route`. If you rendered via `m.render`, you should use `m.render` to redraw.
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You should not call m.redraw from a [lifecycle method](lifecycle-methods.md). Doing so will result in undefined behavior. |