I'm working under particular circumstances and I am trying to get a slick slider carousel to run.
I get an error that $ is not defined.
Unless I use
window.onload = function(e){
$(document).ready(function () {
$('.js-slick').slick({
autoplay: true,
autoplaySpeed: 5000,
dots: true,
fade: true,
speed: 1000
});
});
};
The problem is, this slider is the first thing on the page, so I can not wait until everything is loaded, as it takes way too long.
I cannot change the order of my script tag or make sure the jQuery link is properly placed in the head an so on.
I know that other sliders on the page work just fine, and I also know that this particular one works fine once the proper files are loaded
There must be a way to check if $ is defined, keep checking until it is, and then run the script once confirmed.
use a waiter:
setTimeout(function wait(){
if(!window.$) return setTimeout(wait, 100);
// do stuff needing $ here:
console.info("$=", $);
}, 100);
var timer = setInterval(checkjQuery, 5000);
function checkjQuery() {
if(window.jQuery) {
clearInterval(timer);
callSlick();
console.log('jQuery is loaded');
return;
} else {
console.log('waiting');
}
}
function callSlick() {
$('.js-slick').slick({
autoplay: true,
autoplaySpeed: 5000,
dots: true,
fade: true,
speed: 1000
});
};
Similar to DanDavis solution
IMO the answer from #dandavis solves the issue the simplest.
I'd like to offer a way to make a simple "wait-er" re-usable and show how to integrate this with the code you shared.
A re-usable wait-er:
function waitUntil(getResource, callback) {
// Copied from #dandavis' answer
setTimeout(function wait() {
const resource = getResource();
if(!resource) return setTimeout(wait, 100);
callback(resource);
}, 100);
}
window.onload = function(e) {
waitUntil(function () { return window.$; }, function () {
$(document).ready(function () {
$('.js-slick').slick({
autoplay: true,
autoplaySpeed: 5000,
dots: true,
fade: true,
speed: 1000
});
});
});
};
Or if you wanted to, you could make it promise-based:
function waitUntil(getResource) {
return new Promise((resolve, reject) => {
setTimeout(function wait() {
const resource = getResource();
if(!resource) return setTimeout(wait, 100);
resolve(resource);
}, 100);
});
}
window.onload = function(e) {
waitUntil(function () { return window.$; })
.then(function () {
$(document).ready(function () {
$('.js-slick').slick({
autoplay: true,
autoplaySpeed: 5000,
dots: true,
fade: true,
speed: 1000
});
});
});
};
Related
I am attempting to fire a click event when the page loads but only once on each page load. What is happening is that in localhost it works fine, but when I upload to server it dosen't fire at all.
The idea was to set a counter to 0 when the page loads then inc the counter by 1 to disable further clicks. Obviously, there is an error somewhere but I cannot solve it.
I am using jqwidgets jqxgrid to display the data and getting the class as a variable. I am also using jquery 1.11.1
I would be grateful if someone could help me solve this as I seem to have tried many combinations, but ok on localhost but nothing on server. I am using php v5.3.13 wamp and 5.4 on server. Many thanks
var counter = 0;
window.onload = function() {
var calendaricons = document.getElementsByClassName('jqx-icon-calendar');
for (var i = 0; i < calendaricons.length; i++) {
calendaricons[i].addEventListener('click', function() {
if (counter === 0) {
notif({
type: "info",
msg: "Test Message",
width: 650,
height: 99,
multiline: true,
position: "center",
fade: true,
//timeout: 3000,
autohide: false,
clickable: true
});
counter++;
} else {
return false;
}
});
}
}
If you are using jQuery, which it seems the case, you can use the one function that allows your handler to be runt only once.
Here is your code with the use of the one function:
$(window).load(function() {
$('.jqx-icon-calendar').each(function(index, item) {
$(this).one("click", function() {
notif({
type: "info",
msg: "Test Message",
width: 650,
height: 99,
multiline: true,
position: "center",
fade: true,
//timeout: 3000,
autohide: false,
clickable: true
});
});
});
});
I have a problem with afterAction functions on my owl carousel.
The problem is that afterAction:syncPosition doesn't work when the second after Action "function(current)" is in the code. If I delete it, syncPosition works.
Currently I can't make a fiddle but maybe some of you can see a misspelled or something below.
UPDATE// ENTIRE CODE
$(document).ready(function() {
$(".owl-carousel").owlCarousel({
loop: false,
navigation: true,
pagination: true,
paginationSpeed: 1000,
singleItem: true,
transitionStyle: "mask",
autoHeight: true,
autoPlay: 10000, //Set AutoPlay to 3 seconds
navigationText : false,
afterAction: syncPosition,
afterAction: function(current) {
current.find('video').get(0).play();
}
});
function syncPosition(el) {
var current = this.currentItem;
// code for smooth transition
this.owl.owlItems.removeClass('turn-on');
var t = this;
$(this.owl.owlItems[this.owl.currentItem]).addClass('turn-on');
}
});
$(window).scroll(function() {
if ($(this).scrollTop() > 80) {
$('.owl-pagination').addClass('hidden');
} else {
$('.owl-pagination').removeClass('hidden');
}
});
I've changed
afterAction: function(current) {
current.find('video').get(0).play();
}
to
afterInit: function(){
$("#sequence-1").find('video').get(0).play();
and both syncPosition and .find('video').get(0).play();
are working.
I am using the following code for a gallery in AngularJS but if I try to use it without AngularJS it doesn't seems to work. If I run it with AngularJS then it will open the images properly but if I run it normally it will open the image as Can anyone to explain to me the difference?
app.js (AngularJS)
app.controller('GalleryController', function() {
var gallery = $('#gallery'),
gallery1 = $('#gallery1');
console.log("init gallery");
$('#gallery').photobox('a', {
thumbs: true,
loop: false
}, callback);
$('#gallery1').photobox('a', {
thumbs: true,
loop: false
}, callback);
function callback(){
console.log('image has been loaded');
}
console.log("GALLERY CONTROLLER BEGIN");
});
gallery.html (jQuery)
(function() {
'use strict';
var gallery = $('#gallery'),
gallery1 = $('#gallery1');
console.log("init gallery");
$('#gallery').photobox('a', {
thumbs: true,
loop: false
}, callback);
$('#gallery1').photobox('a', {
thumbs: true,
loop: false
}, callback);
function callback(){
console.log('image has been loaded');
}
console.log("GALLERY CONTROLLER BEGIN");
});
How can i push my content the same as another content? OK i know the question seems kind of vague but what I want to do is push my content like the way another script is pushing its content. What is doing when clicking the button it will push the content from the side causing the div to contract. I am not too far so maybe somebody can help. This is the script that works:
$(function(){
var $trigger = $(".icon-menu-2");
var $menu = $(".c_left");
$trigger.toggle(function show() {
$menu.animate({ width: 185, marginLeft: 0, display: 'toggle'}, 'slow');
$(".c_right").animate({ marginLeft:185, display:'toggle'}, 'slow');
}, function hide() {
$menu.animate({ marginLeft: -185, display: 'toggle'}, 'slow');
$(".c_right").animate({ marginLeft:0, display:'toggle'}, 'slow');
});
})
http://jsfiddle.net/Ndvbn/2/
Here is the script that needs just a small touch up so that it will push the content just like the script above does when clicking on test. Here is the script:
var timer;
$("#slideout").animate({right:'0px', queue: false, duration: "slow"}, function () {
timer = setTimeout(function () {
$("#slideout").animate({right:'-280px'}, {queue: false, duration: "slow"})
}, 500);
});
$("#clickme2").click(function () {
if ($("#slideout").css("right") == "-280px"){
$("#slideout").animate({right:'0px'}, {queue: false, duration: 500}, function () {
clearTimeout(timer);
});
} else {
$("#slideout").animate({right:'-280px'}, {queue: false, duration: 500}, function () {
clearTimeout(timer);
});}
});
http://jsfiddle.net/5UpHk/4/
Can anybody post the code so that my second script will push the content to the left?
This script below will push the content to the left. I made a couple of changes to the CSS as well. Check out the demo and code here: http://jsfiddle.net/BdKhW/1/
var timer;
$("#slideout").animate({width:'275px'}, {queue: false, duration: "slow"}, function () {
timer = setTimeout(function () {
$("#slideout").animate({width:0}, {queue: false, duration: "slow"})
$(".c_left").animate({marginRight:0}, {queue: false, duration: "slow"})
}, 2000);
});
$(".c_left").animate({marginRight:'275px'}, {queue: false, duration: "slow"})
$("#clickme2").click(function () {
$("#slideout").animate({width:0}, {queue: false, duration: "slow"})
$(".c_left").animate({marginRight:0}, {queue: false, duration: "slow"})
});
I have the following animations in my web page:
$(".anim-item").not(this).animate({
opacity: 0,
}, { queue: true, duration: 1000 } , function() {
// Animation complete.
});
$(this).animate({
left: 200,
}, { queue: true, duration: 1000 } , function() {
// Animation complete.
});
Currently both the animations are running simultaneously. I want the second animation to run after the first one. I tried putting the second one inside the callback function, but cannot find a way to get the $(this) reference working. Any idea how to get this working?
Thanks in advance.
Your function is wrong, if you are declaring options, then the callback goes in the options object:
$(".anim-item").animate({
opacity: 1,
}, {duration: 1000, queue: true, complete: function() {
$(this).animate({
left: 200,
}, { queue: true, duration: 1000, complete: function() {
// Animation complete.
}});
}});
Also, don't make a global variable containing the item, that's just asking for trouble, especially as jquery will maintain it for you in this instance, if you need to declare a new variable for the object in chaining, generally you are not doing it right ;)
Two ways:
cache this in a local variable before calling .animate()
use .proxy() to pass your this reference to .animate()
example 1:
var func = function(){
var self = this;
$(".anim-item").not(this).animate({
opacity: 0,
}, { queue: true, duration: 1000 } , function() {
self.animate({});
});
};
example 2:
var func = function(){
$.proxy($(".anim-item").not(this).animate({
}), this);
};
Save it under a different name, like this:
var myThis = this;
$(".anim-item").not(this).animate({
opacity: 0,
}, { queue: true, duration: 1000 } , function() {
$(myThis).animate({
left: 200,
}, { queue: true, duration: 1000 } , function() {
// Animation complete.
});
});
The closure of the inner function will make sure it's visible.
Make an alias for this via
var _this = this;
If you write a jQuery query $('.abc') and use functions like click, hover etc, this will always reference to current DOM node jQuery is processing.
Store this in a local variable.
var _this = this;
$(".anim-item").not(this).animate({
opacity: 0,
}, { queue: true, duration: 1000 } , function() {
// Animation complete. Next animation
$(_this).animate({
left: 200,
}, { queue: true, duration: 1000 } , function() {
// Animation complete.
});
}
);
In a jQuery callback function this is always set to the DOM element that the function applies to.
If you want access to this in your first callback function you'll have to create a reference to it before you animate:
var self = this;
$(".anim-item").not(this).animate({
opacity: 0,
}, { queue: true, duration: 1000 } , function() {
$(self).animate({
left: 200,
}, { queue: true, duration: 1000 } , function() {
// Animation complete.
});
});