CODEWITHSUNDEEP
reactjsreact-native
Krešimir Galić
Krešimir Galić

Reputation: 311

React native - update item in array with AsyncStorage

I want to update single item in array, and I don't know how to do it. I tried this approach but it doesn't work.

async _updatePoints (value) {
  await AsyncStorage.setItem(`@results:${value.scoreId}`, JSON.stringify(value));
  this._updateList();
}

As you see, my key in storage is results, and i tried to find it my scoreId which is generated random id.

scoreId: uuid.v4()

Upvotes: 0

Views: 1353

Answers (1)

Nerdragen
Nerdragen

Reputation: 3184

You're close, but your syntax is just slightly off. You're trying

AsyncStorage.setItem(`@results:${value.scoreId}`, JSON.stringify(value));

which maps out to

AsyncStorage.setItem(`@[key]:[key for value]`, [value for value]);

The correct syntax is actually 

AsyncStorage.setItem(`@[store]:[key]`, {[key for value]:[value for value]});

which maps out to

AsyncStorage.setItem(`@appName:results`, JSON.stringify({scoreId:value}));

Upvotes: 1

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