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75 challenges · Practitioner to Specialty
10 Easy
19 Medium
46 Hard
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All React challenges
React: useState init fn
Hard
Free
+20 XP
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React: stale closure
Hard
Free
+20 XP
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React: cleanup subscription
Hard
Free
+20 XP
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React: conditional hooks
Hard
Free
+20 XP
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React: prop types
Medium
Free
+15 XP
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React: why keys stable
Hard
Free
+20 XP
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React: event pooling
Hard
Free
+20 XP
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React: multiple states
Medium
Free
+15 XP
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React: functional update
Hard
Free
+20 XP
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React: effect vs layout
Hard
Free
+20 XP
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React: context provider
Hard
Free
+20 XP
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React: re-render cause
Medium
Free
+15 XP
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React: pure component
Hard
Free
+20 XP
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React: avoid inline fn
Hard
Free
+20 XP
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React: suspense
Hard
Free
+20 XP
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