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When to use valueChangeListener or f:ajax listener?
...orm during the HTML DOM change event, then you'd need to add another <f:ajax/> without a listener(!) to the input component. It will cause a form submit which processes only the current component (as in execute="@this").
<h:selectOneMenu value="#{bean.value}" valueChangeListener="#{bean.ch...
Handle file download from ajax post
I have a javascript app that sends ajax POST requests to a certain URL. Response might be a JSON string or it might be a file (as an attachment). I can easily detect Content-Type and Content-Disposition in my ajax call, but once I detect that the response contains a file, how do I offer the client t...
Differences between action and actionListener
...te in JSF? How to make URL reflect current page (and not previous one).
f:ajax listener
Since JSF 2.x there's a third way, the <f:ajax listener>.
<h:commandXxx ...>
<f:ajax listener="#{bean.ajaxListener}" />
</h:commandXxx>
The ajaxListener method has by default the fol...
Modify Address Bar URL in AJAX App to Match Current State
I'm writing an AJAX app, but as the user moves through the app, I'd like the URL in the address bar to update despite the lack of page reloads. Basically, I'd like for them to be able to bookmark at any point and thereby return to the current state.
...
How to fire AJAX request Periodically?
...fresh the page after every 5 seconds. But I want to do it using jQuery and AJAX call. Is it possible?
4 Answers
...
How do I link a JavaScript file to a HTML file?
...>
Test in real time
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<!--LINK JQUERY-->
<script type="text/javascript" src="jquery-3.3.1...
What is content-type and datatype in an AJAX request?
...{"success":true}
Then you should have:
var data = {"name":"John Doe"}
$.ajax({
dataType : "json",
contentType: "application/json; charset=utf-8",
data : JSON.stringify(data),
success : function(result) {
alert(result.success); // result is an object which is created from t...
Rails detect if request was AJAX
... my action I wish to only respond with processing if it was called from an AJAX request. How do I check?
5 Answers
...
How can jQuery deferred be used?
...
The best use case I can think of is in caching AJAX responses. Here's a modified example from Rebecca Murphey's intro post on the topic:
var cache = {};
function getData( val ){
// return either the cached value or jqXHR object wrapped Promise
return $.when(
...
How can I get browser to prompt to save password?
...nction(event){event.preventDefault();});
someFunctionForLogin() does the ajax login and reload/redirect to the signed in page while event.preventDefault() blocks the original redirection due to submitting the form.
If you deal with Firefox only, the above solution is enough but it doesn't work in...