push elements to an array with useState code example

Example 1: usestate array push

setTheArray([...theArray, newElement]);

Example 2: react state array push

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