# Variable updates

# Objects and primitive data types

For all objects and primitive data types you can just assign a new value to trigger a rerendering of your application.

let text = 'First';

const onClick = () => {
    text = 'Second';
}

Array methods like push are not reactive. You need to reassign the value to trigger the reactivity.

let array = [0];

const onClick = () => {
    array = [...array, 1];
}