30秒学会 JavaScript 片段 – Add styles to HTML element

Adds the provided styles to the given HTML element.

• Use Object.assign() and HTMLElement.style to merge the provided styles object into the style of the given element.

代码实现

const addStyles = (el, styles) => Object.assign(el.style, styles);

addStyles(document.getElementById('my-element'), {
  background: 'red',
  color: '#ffff00',
  fontSize: '3rem'
});

翻译自：https://www.30secondsofcode.org/js/s/add-styles-to-html-element