Documentation

Student-friendly HTML, CSS, and JavaScript reference with examples

Sections


                                        querySelector()


                                        querySelectorAll()


                                        .textContent


                                        .value


                                        for...of (DOM)


                                        addEventListener()


                                        'click'


                                        'input'


                                        .style


                                        .classList.add()


                                        .classList.remove()


                                        .classList.toggle()


                                        createElement()


                                        .appendChild()


                                        .remove()


                                        .parentElement


                                        .getAttribute()


                                        data-*

querySelectorAll

Finds all elements that match a CSS selector. Returns a NodeList (array-like).

const buttons = document.querySelectorAll('button');
const boxes = document.querySelectorAll('.box');

for (const box of boxes) {
  console.log(box);
}

Use a for…of loop to iterate through the results.