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Mention the handy ignoreExtraKeys() method #8675

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Nov 21, 2017
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Mention the handy ignoreExtraKeys() method #8675

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3 changes: 3 additions & 0 deletions components/config/definition.rst
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Expand Up @@ -210,6 +210,9 @@ Before defining the children of an array node, you can provide options like:
If called (with ``false``), keys with dashes are *not* normalized to underscores.
It is recommended to use this with prototype nodes where the user will define
a key-value map, to avoid an unnecessary transformation.
``ignoreExtraKeys()``
Allows extra config keys to be specified under an array without
throwing an exception.

A basic prototyped array configuration can be defined as follows::

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