2021 프론트 엔드 로드맵 따라가기/JS
Replace & Remove Elements
알 수 없는 사용자
2021. 5. 31. 12:48
Replace
// Create Element
const newHeading = document.createElement("h2");
// Add an id
newHeading.id = "task-title";
// New text node
newHeading.appendChild(document.createTextNode("Task List"));
// Get the old Heading
const oldHeading = document.querySelector("#task-title");
// Parent
const cardAction = document.querySelector(".card-action");
// Replace
cardAction.replaceChild(newHeading, oldHeading);
console.log(newHeading);
Remove
// Remove element
const lis = document.querySelectorAll("li");
const list = document.querySelector("ul");
// Remove list item
lis[0].remove();
// Remove child element
list.removeChild(lis[3]);
// Classes & Attr
const firstLi = document.querySelector("li:first-child");
const link = firstLi.children[0];
let val;
// Classes
val = link.className;
val = link.classList;
val = link.classList[0];
link.classList.add("test");
link.classList.remove("test");
val = link;
// Attributes
val = link.getAttribute("href");
val = link.setAttribute("href", "http://google.com");
link.setAttribute("title", "google");
val = link.hasAttribute("title");
link.removeAttribute("title");
val = link;
console.log(val);