@mdui/jq/methods/is.js

拥有和 jQuery 相似 API 的轻量级 JavaScript 工具库

import { $ } from '../$.js';
import { isDocument, isFunction, isString, isWindow, } from '../shared/helper.js';
import './each.js';
// eslint-disable-next-line @typescript-eslint/no-explicit-any
$.fn.is = function (selector) {
    let isMatched = false;
    if (isFunction(selector)) {
        this.each((index, element) => {
            if (selector.call(element, index, element)) {
                isMatched = true;
            }
        });
        return isMatched;
    }
    if (isString(selector)) {
        this.each((_, element) => {
            if (isDocument(element) || isWindow(element)) {
                return;
            }
            if (element.matches.call(element, selector)) {
                isMatched = true;
            }
        });
        return isMatched;
    }
    const $compareWith = $(selector);
    this.each((_, element) => {
        $compareWith.each((_, compare) => {
            if (element === compare) {
                isMatched = true;
            }
        });
    });
    return isMatched;
};