Develop Reference

unable to return result using jquery

I'm using jquery UI's slider and i want to return the results from multiple sliders so I can performs a calculation.
this is what i have so far but I'm struggling to get any results from out side the function.
$(function() {
var x
$("#slider4").slider({
value: 1,
min: 0,
max: 50,
step: 5,
slide: function(event, ui) {
$("#items").val("$" + ui.value);
x =$("#items").val("$" + ui.value);
}
});
$("#items").val("$" + $("#slider4").slider("value"));
console.log(x) // this doesnt update the console with the slider value
});
Ideally outside the function i would want to add multiple slider results similar to below.
var z = x * y;

To get the value of the slider outside of the slide handler you can either retrieve the value of #items (as you update that within the slide handler):
var sliderValue = $('#items').val();
Or you can read the value from the slider() directly:
var sliderValue = $('#slier4').slider('option', 'value');
Also, note that you do not need to append empty strings when setting val():
$("#slider4").slider({
value: 1,
min: 0,
max: 50,
step: 5,
slide: function(event, ui) {
$("#items").val(ui.value);
}
});

The value does not magically keep updating the textbox, you need to write code that updates the value when the slider value changes. So add a change event
change: function( event, ui ) { $("#items").val(ui.value); }

Jquery ui slider change automatically on manual input

This is the code for my jquery ui slider:
var slidervalue = 100;
$(function () {
$( "#slider" ).slider({
range: "min",
value: 100,
min: 1,
max: 700,
slide: function( event, ui ) {
$( "#amount" ).val(ui.value );
slidervalue = ui.value;
}
});
$( "#amount" ).val( $( "#slider" ).slider( "value" ) );
});
And this is a extra the function i have created to fetch a number from my deal title and calculate savings and display the result.
function updateSlider() {
$.each($('.coupontitle'),function(index,coupObj){
if ($(coupObj).text().match(/(\d+)\%/i))
{
var percent = $(coupObj).text().match(/(\d+)\%/i);
var savings = ((percent[1]*.01) * slidervalue).toFixed(0);
$('span',coupObj).html('Save: $'+savings);
}
else if ($(coupObj).text().match(/\$(\d+)/i))
{
var percent = $(coupObj).text().match(/\$(\d+)/i);
var savings = ((percent[1]*.01) * 100).toFixed(0);
$('span',coupObj).html('Save: $'+savings);
}
});
}
this code is working properly along with the slider. right now, when a user slides the slider the amount corresponding to the slider is passed using ui.value and is passed to the above function and is calculated.
But, when i input a value into the text box manually, i want the slider to move automatically, and i want that value to pass into the function to calculate. Right now, when a amount is entered manually, the input value is not passed into the function.
I want the slider to work as this site: http://www.chippmunk.com/
I came across this jsfiddle, which does the work, but when manually entered it is not passing the text box value into my function to carry on with the calculation.
jsfiddle - http://jsfiddle.net/andrewwhitaker/MD3mX/

The accepted answer above is very useful and it works fine for single value sliders. But someone like me might wonder how to control two values in Range Slider.
So, if we use range slider, we need to pass an array as values and for range slider we can handle it like this
var min_val = 0;
var max_val = 1000;
function minMaxControl(type) {
if (type == 'min') {
min_val = $('#min').val();
} else if (type == 'max') {
max_val = $('#max').val();
}
$("#slider-range").slider('values', [min_val, max_val]);
}
$("#slider-range").slider({
range: true,
min: 0,
max: 1000,
values: [min_val, max_val],
slide: function(event, ui) {
$("#min").val(ui.values[0]);
$("#max").val(ui.values[1]);
}
});
You can see the full code and demo here. https://jsfiddle.net/N4K1B/2tv9phke/1/
So basically in above answer the single parameter of the slider was controlled like this:
$("#slider").slider("value",this.value);
And for range slider instead of passing a single value we are passing an array of two values like this:
$("#slider-range").slider('values', [min_val, max_val]);
Hope this answer may help someone if someone is still using jquery-ui slider.
For more, please refer to the documentation

This will work, I would move the $-sign out of the input though.
http://jsfiddle.net/Rusln/MD3mX/847/
$("#slider").slider({
range: "min",
value: 1,
step: 1000,
min: 0,
max: 5000000,
slide: function (event, ui) {
$("input").val(ui.value);
}
});
$("input").change(function () {
$("#slider").slider("value",this.value);
});
UPDATE
http://jsfiddle.net/Rusln/KLj6Z/
$("#slider").slider({
range: "min",
value: 1,
step: 1,
min: 0,
max: 100,
slide: function (event, ui) {
$("input").val(ui.value);
}
});
$("input").on("keyup",function(e){
$("#slider").slider("value",this.value);
});

Presenting indicators and milestone labels for ui slider bar

Using HTML & JavaScript
I created a slide bar which successfully responds both ways with a select option.
However i have choosen to 'hide' the select option box. I was wondering if anyone could give me any tips on creating labels for the slider bar as the user now has no idea what they are selecting. Examples i have found show perfect indicators, milestone numbers and floating numbers when hovering over yet everything is slide bar related and rather than labels. Help!
My JavaScript Slider Bar Code
$(function() {
var select = $( "#logbytes");
var slider = $( " <div id='slider'></div>").insertAfter(select).slider({
min: 1,
max: 6,
step: 1,
value: select[0].selectedIndex + 1,
slide: function(event, ui) {
select[0].selectedIndex = ui.value - 1;
}
});
$('#logbytes').after(slider).hide();
});

The basic idea is to wrap your slider inside a wrapper div. Then to add another div inside the wrapper. Its text will be the current value of the slider.
And then the only thing left to do is to move that div around and to update it's text. It's something like:
slide: function(event, ui) {
$( ".amount" ).text( ui.value );
$( ".amount" ).css("margin-left",(ui.value-min)/(max-min)*100+"%");
}
Where min and max are the min and max of your slider.
See http://jsfiddle.net/WYdLF/ for an example.

How to display the current slider value on the jQuery slider knob?

I'm trying to figure out from the jQuery example here whether it's possible to set the current value of the slider as text that appears on the slider knob.
So, as the user changes the slider, the new value would continually update as a number value displayed as text on the surface of the slider knob in real time.
$(document).ready(function() {
$("#slider").slider();
});
<div id="slider"></div>
Is there a way to do that?

#EvilMM's answer is almost right but s/he forgot the quotes and I've also experienced the slider value being -1 so I wrote in a fix for that.
<div id="slider"></div>
js:
$("#slider").slider({
max: 10,
slide: function (event, ui) {
m_val = ui.value;
if (m_val < 0) {
m_val = 0;
$(this).slider({ value: 0 });
}
$(this).find("a:first").text(m_val);
}
});

Lets say your slider is called "slider", just like in you example:
<div id="slider" class="slider"></div>
Then, inside this div, there is a generated link-tag (a) that represents the knob.
So you could try something like that:
$(document).ready(function() {
$("#slider").slider(
slide: function(event, ui){
$("#slider").find(a:first).text(ui.value);
}
);
});
This should write the current value on the knob while sliding.
What you now have to do, is to play around with the css to format the knob.
I hope this will help a little bit.

If you are using Jquery UI
$(function(){
var slider = $('#slider1').bxSlider({
onBeforeSlide: function(currentSlide, totalSlides){
alert(currentSlide);
}
});
Done!

Using offset and jQuery slider

I am using offset() with the jquery slider and I am so close to achieving my goal, but it is off slighty. I have it animating using animate to the top CSS coordinates but if you check out: http://www.ryancoughlin.com/demos/interactive-slider/index.html - you will see what it is doing. My goal is to have it fadeIn() and display the value to the right of the handle. i know I can offset the text from the handle using a simple margin:0 0 0 20px.
The part is aligning #current_value to the right of the handle. Thoughts?
var slide_int = null;
$(function(){
$("h4.code").click(function () {
$("div#info").toggle("slow");
});
$('#slider').slider({
animate: true,
step: 1,
min: 1,
orientation: 'vertical',
max: 10,
start: function(event, ui){
$('#current_value').empty();
slide_int = setInterval(update_slider, 10);
},
slide: function(event, ui){
setTimeout(update_slider, 10);
},
stop: function(event, ui){
clearInterval(slide_int);
slide_int = null;
}
});
});
function update_slider(){
var offset = $('.ui-slider-handle').offset();
var value = $('#slider').slider('option', 'value');
$('#current_value').text('Value is '+value).css({top:offset.top });
$('#current_value').fadeIn();
}
I know I could use margin to offset it to match, but is there a better way?

There are two problems. The first, like Prestaul said, the slider event fires at the "beginning" of the move, not the end, so the offset is wrong. You could fix this by setting a timeout:
$(function(){
slide: function(event, ui){
setTimeout(update_slider, 10);
},
...
});
function update_slider()
{
var offset = $('.ui-slider-handle').offset();
var value = $('#slider').slider('option', 'value');
$('#current_value').text('Value is '+value).animate({top:offset.top }, 1000 )
$('#current_value').fadeIn();
}
The second problem is that the move is instantaneous, while the animation is not, meaning that the label will lag behind the slider. The best I've come up with is this:
var slide_int = null;
$(function(){
...
start: function(event, ui){
$('#current_value').empty();
// update the slider every 10ms
slide_int = setInterval(update_slider, 10);
},
stop: function(event, ui){
// remove the interval
clearInterval(slide_int);
slide_int = null;
},
...
});
function update_slider()
{
var offset = $('.ui-slider-handle').offset();
var value = $('#slider').slider('option', 'value');
$('#current_value').text('Value is '+value).css({top:offset.top });
$('#current_value').fadeIn();
}
By using css instead of animate, you keep it always next to the slider, in exchange for smooth transitions. Hope this helps!

I had the same problem: the visible value in Jquery Ui slider lags behind from internal value. Fixed the problem by changing the slider event from "slide" to "change".

You just need to use a different event. "slide" fires before the handle is moved so your value is ending up at the previous handle position. Try the "change" event and see if that gets you there.