I am trying to validate data live with ajax and jquery, my ajax function returns data in every 2 seconds so i want to add some time out to focusout.
$("#username").focusout(function() {
setTimeout(function() {
if (/^[a-zA-Z][a-zA-Z0-9-_\.]{1,20}$/.test($(this).val()) && $(this).val().trim() !== "" && $(this).attr('availability') === 'true') {
$(this).css("border-color", "#37ff00");
} else {
$(this).css("border-color", "red");
}
}, 1000);
});
I replaced $(this) with $("#username") and it now works.
Related
I'm using ajax to pull in content to create a light box type content page. It also has a next and prev button once loaded so hence the use of ajax.
I wanted to use Ajax for the page navigation too. But if someone clicks a page link and then tries to use the light box feature both the jquery and ajax requests no longer work within the loaded area.
I've read a lot about bind and delegate but not sure how to use them in this context
Here's my main pieces of code:
// This gets called on document ready
function clicky() {
$link.click(function(e) {
e.preventDefault();
var linkPage = $(this).attr('href');
if ($(this).hasClass('pages')){
// PAGE specific code
if ($('body').scrollTop() != 0) {
$('body').animate({ scrollTop: 0 }, 500, function(){
pageLoad(linkPage);
});
} else { pageLoad(linkPage); }
console.log('page');
} else {
// PRODUCT specific code
if ($('body').scrollTop() != 0) {
$('body').animate({ scrollTop: 0 }, 500, function(){
productLoad(linkPage);
});
} else {
productLoad(linkPage);
}
}
});
}
Here's my ajax for the two different areas:
// Ajax stuff going on for pages
function pageLoad(linkPage) {
// Page stuff fades out
history.pushState(null, null, linkPage);
$("#page-content").load(linkPage + " #guts", function(){
// Loads in page content
});
}
// Ajax stuff going on for Products
function productLoad(linkPage) {
// Page stuff fades out
history.pushState(null, null, linkPage);
$("#product-content").load(linkPage + " #guts", function(){
// Shows an overlay/lightbox and loads in content
});
}
Edit: This worked for me
$(document).on('click', '.link' , function(){
console.log('this worked');
return false;
});
This worked:
$(document).on('click', '.link' , function(){
console.log('this worked');
return false;
});
I'm using Bootstrap Typeahead to suggest som search results. The results are returned from a ajax ressource, and since this resource creates a delay, I'm experiencing a unfortunate effect.
Example:
If typing a 4 letter word, the suggestions will appear after 2 letters, I can then go through the results with the keys up/down, but suddenly the suggestions will reload because the last request has finished.
Is there any way to "cancel" any remaining, if user is currently using the keys up/down to go through the suggestions?
('#query').typeahead({
items: 4,
source: function (query,process) {
map = {};
$.getJSON('/app_dev.php/ajax/autosuggest/'+query, function (data) {
vehicles = [];
$.each(data, function(i,vehicle){
map[vehicle.full] = vehicle;
vehicles.push(vehicle.full);
});
process(vehicles);
});
},
updater: function (item) {
// do something here when item is selected
},
highlighter: function (item) {
return item;
},
matcher: function (item) {
return true;
}
});
I think the following will satisfy your needs (its hard to reproduce exactly) :
There is no easy way to abort a delayed response, but you could extend typeahead as I figured out here (without modifying bootstrap.js)
The concept is to catch keydown, detect if the event is KEY_UP or KEY_DOWN, set a flag is_browsing, and then abort process if is_browsing is true (that is, if the user has hitted KEY_UP or KEY_DOWN and no other keys afterwards).
Extending typeahead :
// save the original function object
var _superTypeahead = $.fn.typeahead;
// add is_browsing as a new flag
$.extend( _superTypeahead.defaults, {
is_browsing: false
});
// create a new constructor
var Typeahead = function(element, options) {
_superTypeahead.Constructor.apply( this, arguments )
}
// extend prototype and add a _super function
Typeahead.prototype = $.extend({}, _superTypeahead.Constructor.prototype, {
constructor: Typeahead
, _super: function() {
var args = $.makeArray(arguments)
// call bootstrap core
_superTypeahead.Constructor.prototype[args.shift()].apply(this, args)
}
//override typeahead original keydown
, keydown: function (e) {
this._super('keydown', e)
this.options.is_browsing = ($.inArray(e.keyCode, [40,38])>-1)
}
//override process, abort if user is browsing
, process: function (items) {
if (this.options.is_browsing) return
this._super('process', items)
}
});
// override the old initialization with the new constructor
$.fn.typeahead = $.extend(function(option) {
var args = $.makeArray(arguments),
option = args.shift()
// this is executed everytime element.modal() is called
return this.each(function() {
var $this = $(this)
var data = $this.data('typeahead'),
options = $.extend({}, _superTypeahead.defaults, $this.data(), typeof option == 'object' && option)
if (!data) {
$this.data('typeahead', (data = new Typeahead(this, options)))
}
if (typeof option == 'string') {
data[option].apply( data, args )
}
});
}, $.fn.typeahead);
This typeahead-extension could be placed anywhere, eg in a <script type="text/javascript"> -section
Testing the extension :
<input type="text" id="test" name="test" placeholder="type some text" data-provide="typeahead">
<script type="text/javascript">
$(document).ready(function() {
var url='typeahead.php';
$("#test").typeahead({
items : 10,
source: function (query, process) {
return $.get(url, { query: query }, function (data) {
return process(data.options);
});
}
});
});
</script>
A "serverside" PHP script that returns a lot of randomized options with forced delay, typeahead.php :
<?
header('Content-type: application/json');
$JSON='';
sleep(3); //delay execution in 3 secs
for ($count=0;$count<30000;$count++) {
if ($JSON!='') $JSON.=',';
//create random strings
$s=str_shuffle("abcdefghijklmnopq");
$JSON.='"'.$s.'"';
}
$JSON='{ "options": ['.$JSON.'] }';
echo $JSON;
?>
It really seems to work for me. But I cannot be sure that it will work in your case. Let me now if you have success or not.
Having problem with prototype ajax and setTimeout. Here is my code shortened:
//new ajax request
....onComplete: function (transport) { //json as this -> array[$i].something
var json = transport.responseJSON;
var $i = 0;
window.setTimeout(function () {
SLOW();
},
500); //display every json[$i] with custom delay
function SLOW() {
$i++;
if (json[$i].something !== null) { //insert in proper div id in the html document
window.setTimeout(function () {
$('document_div' + json[$i].something).innerHTML = json[$i].something_to_display;
},
500);
window.setTimeout(function () {
$('document_div' + json[$i].something).innerHTML = json[$i].something_to_display;
},
1000);...window.setTimeout(function () {
SLOW();
},
500);
} else {
//stop and continue
}
Getting this error: json[$i] is undefined.
EDIT: looks like i'm getting this error on second timeout, the first one changes the div correctly.
Done.
Solution was to re-var json again before using it in setTimeout.
var json_something = json[$i].something; //and so on...
var json_something_to_display = json[$i].something_to_display
window.setTimeout(function() { $('document_div'+json_something).innerHTML = json_something_to_display; }, 500);
Can somebody explain why this is needed? Why varing json is not enough and it disapears somewhere after one window.setTimeout function?
Did anyone who used jQuery Easy Confirmation plugin run into this issue - the button upon which the confirm box is bound loses its original click event after the first click? I had to change the plugin code to this to make it work. The difference here is between .bind and .click. Can anyone explain why? Pls. let me know if my question is not clear. Thx!
Original plugin code:
// Re-bind old events
var rebindHandlers = function () {
if (target._handlers != undefined) {
jQuery.each(target._handlers, function () {
//this is the difference
$target.bind(type, this);
});
}
}
Changed (working) code:
// Re-bind old events
var rebindHandlers = function () {
if (target._handlers != undefined) {
jQuery.each(target._handlers, function () {
//this is the difference
if(type == 'click')
$target.click(this);
else {
$target.bind(type, this);
}
});
}
}
Try using some alerts to see what's happening...
// Re-bind old events
var rebindHandlers = function () {
if (target._handlers != undefined) {
jQuery.each(target._handlers, function () {
if(type == 'click')
alert('$target.click(' + this + ');');
//$target.click(this);
else {
alert('$target.bind(' + type + ', ' + this + ');');
//$target.bind(type, this);
}
});
}
}
Just curious if there's an easy way to add functions to the $(window).load() event before it has fired. For example, if you call $(window).load() twice in the beginning of the page, only the function of the second call will execute onload.
Is there some sort of tool built into jQuery for adding to the onload event instead of replacing it? If so, how about for the $(document).ready() call?
They actually do stack in the order specified. Here's an example : http://jsfiddle.net/73D9Z/
I've used window.ready()
$(window).ready(function(){
alert('window ready 1');
});
$(window).ready(function(){
alert('window ready 2');
});
$(document).ready(function(){
alert('document ready 1');
});
$(document).ready(function(){
alert('document ready 2');
});
function windowLoad(func) {
var oldonload = window.onload;
if (typeof window.onload != 'function') {
window.onload = func;
} else {
window.onload = function() {
if (oldonload) {
oldonload();
}
func();
}
}
}
function documentReady(func) {
var oldonload = document.ready;
if (typeof document.ready != 'function') {
document.ready = func;
} else {
document.ready = function() {
if (oldonload) {
oldonload();
}
func();
}
}
}
$(window).load() gets executed after a page is rendered.
$(document).ready(handler) executes the function passed as parameter, after the DOM is ready and before the page is rendered.