vanillajs-browser-helpers/matches.js

Collection of convenience code snippets (helpers) that aims to make it a little easier to work with vanilla JS in the browser

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
var inDOM_1 = __importDefault(require("./inDOM"));
function fallback(selector) {
    var matches = document.querySelectorAll(selector);
    var i = matches.length;
    while (--i >= 0 && matches.item(i) !== this) { } // eslint-disable-line no-empty
    return i > -1;
}
// Determine the supported method of 'matches' (with or without prefixes)
var ElmProto = Element.prototype;
var _match = ElmProto.matches || ElmProto.webkitMatchesSelector || fallback;
/**
 * Determines whether or not a DOM element matches a given CSS query selector
 *
 * @param elm - DOM element to test
 * @param selector - CSS selector {elm} should match
 * @return Whether or not {elm} matched the selector
 */
function matches(elm, selector) {
    if (selector === void 0) { selector = ''; }
    if (!(0, inDOM_1.default)(elm)) {
        return false;
    }
    return _match.call(elm, selector);
}
exports.default = matches;