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mykwillis/object-diff.js

Created December 13, 2018 20:08
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See what state changed in React componentDidUpdate
Raw
object-diff.js
componentDidUpdate(_: *, prevState: PlayActionState) {
const diff = Object.keys(this.state).reduce((d, key) => {
if (prevState[key] === this.state[key]) return d;
return {
...d,
[key]: this.state[key],
};
}, {});
console.log(diff);
}
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