An Array is used to store multiple values in a single variable. We use jQuery's is() to check the selected element with another element, selector or any jQuery object. $.ajax () Performs an async AJAX request. Id of the referring column in another list. This method traverses along the DOM elements to find a match, which satisfies the passed parameter. This jQuery XHR object, or "jqXHR," returned by $.post () implements the Promise interface, giving it all the properties, methods, and behavior of a Promise (see Deferred object for more information). ; Url This specifies the URL to which the request should be sent. To get the value for each element individually, use a looping construct such as jQuery's .each() or .map() method.. Function Return. How to return max value in ajax function. Completed Code Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. You may also have a look at the following articles to learn more You may also have a look at the following articles to learn more jQuery redirect; jQuery Slider; jQuery UI Button; jQuery contains In ECMAScript this is called spread syntax, and has been supported for arrays since ES2015 and objects since ES2018.. Loops and Comprehensions.