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Improve component type check in getComponentKey. #9464

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Merged
bvaughn merged 2 commits into from
Apr 25, 2017
Merged

Improve component type check in getComponentKey. #9464

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2e53a29
Improve component type check in getComponentKey.
bmeurer Apr 20, 2017
bc2479f
Run yarn prettier.
bmeurer Apr 20, 2017
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2 changes: 1 addition & 1 deletion src/isomorphic/children/traverseAllChildren.js
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Original file line number Diff line number Diff line change
Expand Up @@ -45,7 +45,7 @@ var didWarnAboutMaps = false;
function getComponentKey(component, index) {
// Do some typechecking here since we call this blindly. We want to ensure
// that we don't block potential future ES APIs.
if (component && typeof component === 'object' && component.key != null) {
if (typeof component === 'object' && component !== null && component.key != null) {
// Explicit key
return KeyEscapeUtils.escape(component.key);
}
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