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react-nativesetstate

react native dynamic setstate with string and dynamic index

react native dynamically generate key1-100 state. A combination of string and dynamic index. But, how can i do that without sytaz error? 

this.setstate({ 
     key[index]:1 
})
Solution

  • For React Native to detect changes to state and thus re-render your view you must call setState in immutable manner. So in your case try the following: 

    //copy state
const newState = {...this.state};
//access property - "key1, key2, etc" whatever index is.
newState['key'+index] = 1;
// set new state
this.setState(newState);