validate-target/lib/index.js

Easily validate target of an HTML element especially during event delegation

/**
 * @param {Object} options
 * @param {HTMLElement} options.target Target element
 * @param {String} options.selectorString Any valid CSS selector string (class, id, attribute) with Element.matches()
 * @param {(String|String[])} options.nodeName List of possible nodes name
 * @returns {Boolean} Is the target valid
 */
export default function validateTarget({ target, selectorString, nodeName }) {
    nodeName = [].concat(nodeName);
    return nodeName.some((item) => target.nodeName.toLowerCase() === item && target.matches(selectorString));
}