add element to array in state react code example
Example 1: add new array at the back of react state
this.setState(prevState => ({
myArray: [...prevState.myArray, "new value"]
}))
Example 2: how to add array data on state react
this.setState({ myArray: [...this.state.myArray, 'new value'] }) //simple value
this.setState({ myArray: [...this.state.myArray, ...[1,2,3] ] }) //another array
Example 3: how to update array in react state
this.setState(prevState => ({
arrayvar: [...prevState.arrayvar, newelement]
}))