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add docs about infinite loop pitfall

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Leo Horie 2015-04-21 21:45:21 -04:00
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commit 3137b63b12
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docs/mithril.component.md
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@ -495,7 +495,13 @@ If a component A contains another component B that calls asynchronous services,
### Limitations and caveats
There are a few caveats when nesting components:
One important limitation to be aware of when using components is that you cannot call Mithril's redrawing methods ([`m.startComputation` / `m.endComputation`](mithril.computation.md) and [`m.redraw`](mithril.redraw.md)) from templates.
In addition, you cannot call `m.request` from templates.
Doing so will trigger another redraw, which will result in an infinite loop.
There are a few other technical caveats when nesting components:
1. Nested component views must return either a virtual element or another component. Returning an array, a string, a number, boolean, falsy value, etc will result in an error.