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pure #13748

Merged
merged 2 commits into from
Sep 27, 2018
Merged

pure #13748

merged 2 commits into from
Sep 27, 2018
+433 −70

Commits on Sep 27, 2018

  1. pure 

    A higher-order component version of the `React.PureComponent` class.
During an update, the previous props are compared to the new props. If
they are the same, React will skip rendering the component and
its children.

Unlike userspace implementations, `pure` will not add an additional
fiber to the tree.

The first argument must be a functional component; it does not work
with classes.

`pure` uses shallow comparison by default, like `React.PureComponent`.
A custom comparison can be passed as the second argument.

Co-authored-by: Andrew Clark <acdlite@fb.com>
Co-authored-by: Sophie Alpert <sophiebits@fb.com>
    @acdlite @sophiebits
    acdlite and sophiebits committed Sep 27, 2018
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  2. Warn if first argument is not a functional component

    @acdlite
    acdlite committed Sep 27, 2018
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