돌아가기
이 글은 다음 언어로만 작성되어 있습니다. عربي, English, Español, 日本語, Русский, Türkçe, 简体中文. 한국어 번역에 참여해주세요.

Show a note near the element

중요도: 5

Create a function positionAt(anchor, position, elem) that positions elem, depending on position near anchor element.

The position must be a string with any one of 3 values:

  • "top" – position elem right above anchor
  • "right" – position elem immediately at the right of anchor
  • "bottom" – position elem right below anchor

It’s used inside function showNote(anchor, position, html), provided in the task source code, that creates a “note” element with given html and shows it at the given position near the anchor.

Here’s the demo of notes:

샌드박스를 열어 정답을 작성해보세요.

In this task we only need to accurately calculate the coordinates. See the code for details.

Please note: the elements must be in the document to read offsetHeight and other properties. A hidden (display:none) or out of the document element has no size.

샌드박스를 열어 정답을 확인해보세요.