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coryhouse/brokenReferenceToStateWithoutCallback.js

Last active June 13, 2017 13:56
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Example of improperly referencing state immediately after callback
Raw
brokenReferenceToStateWithoutCallback.js
updateState({target}) {
this.setState({user: {...this.state.user, [target.name]: target.value}});
doSomething(this.state.user) // Uh oh, setState merely schedules a state change, so this.state.user may still have old value
}
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