30秒学会 JavaScript 片段 – toggleClass

Toggles a class for an HTML element.

Use element.classList.toggle() to toggle the specified class for the element.

代码片段

const toggleClass = (el, className) => el.classList.toggle(className);

使用样例

toggleClass(document.querySelector('p.special'), 'special');
// The paragraph will not have the 'special' class anymore