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DOM selector methods

1. Problem

해당 문제는 JSChallengerDOM selector methods에서 확인하실 수 있습니다.

2. Solve

2-1. Select the button element on the page

const buttonElem = document.getElementById("button");

2-2. Query descendent HTML elements

const buttonElem = document.querySelector("#wrapper button");
const inputElem = document.querySelector("#wrapper input");

2-3. Select multiple HTML elements

document.querySelectorAll("#list li");