The second set of DOM getters we'll talk about are querySelector and querySelectorAll. Create a getelements.js in your lab folder and link it in your index.html. Open up queryselector.js in VScode and ...

querySelector es un método que devuelve el primer elemento que coincide con un selector CSS especificado en el documento. Este método puede seleccionar elementos por su clase, id, etiqueta, atributos, ...

The complete source code, a demo of the file selection feature implementation, and a detailed explanation of the differences between NodeList and HTMLCollection are available in the following blog ...