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-*

appendChild

Adds an element as a child of another element.

const parent = document.querySelector('.container');
const newDiv = document.createElement('div');
newDiv.textContent = 'I am new!';

parent.appendChild(newDiv);

The new element appears at the end of the parent’s children.