replit
// check if an element is a heading (h1 ~ h6) Object.defineProperty(Element.prototype, 'isHeading', { get(){ return this.matches("h1,h2,h3,h4,h5,h6"); } });
💈範例:
function $(selector) { return document.querySelector(selector) } $('h1').isHeading, // true $('#p1').isHeading, // false
Element
Last updated 2 years ago