bouton de déclenchement javascript clic en utilisant le nom de la classe

//The following code assumes that the given element has both of those classes;
document.querySelector('.rateRecipe.btns-one-small').click();

//In the following code, the space is meant to imply an ancestor-descendant relationship
document.querySelector('.rateRecipe .btns-one-small').click();
Geeky Bravo