devextreme/esm/integration/jquery/deferred.js

HTML5 JavaScript Component Suite for Responsive Web Development

/**
 * DevExtreme (esm/integration/jquery/deferred.js)
 * Version: 21.1.4
 * Build date: Mon Jun 21 2021
 *
 * Copyright (c) 2012 - 2021 Developer Express Inc. ALL RIGHTS RESERVED
 * Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
 */
import jQuery from "jquery";
import {
    setStrategy
} from "../../core/utils/deferred";
import {
    compare as compareVersion
} from "../../core/utils/version";
import useJQueryFn from "./use_jquery";
var useJQuery = useJQueryFn();
if (useJQuery) {
    var Deferred = jQuery.Deferred;
    var strategy = {
        Deferred: Deferred
    };
    strategy.when = compareVersion(jQuery.fn.jquery, [3]) < 0 ? jQuery.when : function(singleArg) {
        if (0 === arguments.length) {
            return (new Deferred).resolve()
        } else if (1 === arguments.length) {
            return singleArg && singleArg.then ? singleArg : (new Deferred).resolve(singleArg)
        } else {
            return jQuery.when.apply(jQuery, arguments)
        }
    };
    setStrategy(strategy)
}