react push to state array code example
Example 1: add new array at the back of react state
this.setState(prevState => ({
myArray: [...prevState.myArray, "new value"]
}))
Example 2: usestate array push
setTheArray([...theArray, newElement]);
Example 3: react native update state array of objects
let markers = [ ...this.state.markers ];
markers[index] = {...markers[index], key: value};
this.setState({ markers });
Example 4: how to add array data on state react
this.setState({ myArray: [...this.state.myArray, 'new value'] })
this.setState({ myArray: [...this.state.myArray, ...[1,2,3] ] })
Example 5: how to update array in react state
this.setState(prevState => ({
arrayvar: [...prevState.arrayvar, newelement]
}))
Example 6: add new array at the back of react state
this.setState(prevState => ({
myArray: ["new value", ...prevState.myArray]
}))