Develop Reference

Using two ScrollTop() functions in jQuery?

I'm building a single page website which uses smooth scrolling to anchors for navigation. I'm also trying to add a 'back to the top' button but can't seem to get the animation working (clicking the button doesn't do anything). I believe it's because I'm using two scrollTop functions. Is this correct and how can I solve this?
// Smooth scrolling for page anchors
$(document).ready(function () {
$('a[href^="#"]').on('click', function (e) {
e.preventDefault();
var target = this.hash;
var $target = $(target);
$('html, body').animate({
'scrollTop': $target.offset().top
}, 1000, 'swing');
});
});
// Sticky back to top button
$(document).ready(function () {
$(window).scroll(function () {
if ($(this).scrollTop() > 600) {
$('.go-top').fadeIn("500");
} else {
$('.go-top').fadeOut("500");
}
});
$('.go-top').click(function () {
$('html, body').animate({
scrollTop: 0
}, 800);
return false;
});
});

Found the solution - I had to removed the second $(document).ready(function () { line of code.

Bootstrap 4 jquery not working rails 5

I downloaded the bootstrap 4 theme from this website: https://www.bootstrapzero.com/bootstrap-template/whats-new-in-bootstrap-4-theme
and copied the html and css files into the appropriate places in my rails application, which worked perfectly. However, when incorporating the javascript code, which contains jquery, it does not work.
I tested it out with javascript only and that worked - but it seems that there is an issue with the jquery part. This is what the jquery looks like:
(function($) {
"use strict";
$('body').scrollspy({
target: '.navbar-fixed-top',
offset: 60
});
$('a.page-scroll').bind('click', function(event) {
var $ele = $(this);
$('html, body').stop().animate({
scrollTop: ($($ele.attr('href')).offset().top - 60)
}, 1450, 'easeInOutExpo');
event.preventDefault();
});
$('#collapsingNavbar li a').click(function() {
/* always close responsive nav after click */
$('.navbar-toggler:visible').click();
});
$('#galleryModal').on('show.bs.modal', function (e) {
$('#galleryImage').attr("src",$(e.relatedTarget).data("src"));
});
})(jQuery);
Any ideas as to why it might not be working and how I can fix it?
EDIT: I changed the file to look like the following:
$( document ).on('page:change', function() {
"use strict";
$('body').scrollspy({
target: '.navbar-fixed-top',
offset: 60
});
$('a.page-scroll').on('click', function(event) {
var $ele = $(this);
$('html, body').stop().animate({
scrollTop: ($($ele.attr('href')).offset().top - 60)
}, 1450, 'easeInOutExpo');
event.preventDefault();
});
$('#collapsingNavbar li a').click(function() {
/* always close responsive nav after click */
$('.navbar-toggler:visible').click();
});
$('#galleryModal').on('show.bs.modal', function (e) {
$('#galleryImage').attr("src",$(e.relatedTarget).data("src"));
});
})
None of the JQuery is working. I also tried using an example from a video (https://www.youtube.com/watch?v=K-sns5tNdTY) and it also didn't work.

scroll-to-top button on a mobile website

I'm trying to make the Scroll To Top button appear once the user started scrolling down, instead of it always being present, even when being at the top. Quick note, I barely have experience with JS, so I have no idea what I'm doing.
Anyway here is the page I'm having an error on: http://www.m.evans-carpentry.com/gallery/projects/
<script>
$(function() {
var $elem = $('#content');
$('#nav_up').fadeIn('slow');
$('#nav_down').fadeIn('slow');
$(window).bind('scrollstart', function(){
$('#nav_up,#nav_down').stop().animate({'opacity':'0.2'});
});
$(window).bind('scrollstop', function(){
$('#nav_up,#nav_down').stop().animate({'opacity':'1'});
});
$('#nav_down').click(
function (e) {
$('html, body').animate({scrollTop: $elem.height()}, 800);
}
);
$('#nav_up').click(
function (e) {
$('html, body').animate({scrollTop: '0px'}, 800);
}
);
});
</script>
Thanks!

you call jquery earlier announcements of jquery on line 30
<script>$('#nav Li: has (ul)').doubleTapToGo ();</script>
insert this line after the call jquery

Your code is too complex, try this:
$(document).ready(function(){
//Check to see if the window is top if not then display button
$(window).scroll(function(){
if ($(this).scrollTop() > 100) {
$('.scrollToTop').fadeIn();
} else {
$('.scrollToTop').fadeOut();
}
});
//Click event to scroll to top
$('.scrollToTop').click(function(){
$('html, body').animate({scrollTop : 0},800);
return false;
});
});
".scrollToTop" is the thing to be clicked that scrolls back to the top of the page.

Bootstrap scrolling navbar issues

The website I'm working on: zarwanhashem.com
You can find my previous question (which includes my code) here: Bootstrap one page website themev formatting problems
The selected answer solved my issues but I have another problem because of the jQuery adjustment with the -50. Now the navbar incorrectly indicates the page I am on. i.e. The navbar is supposed to darken the section that you are currently in. So if you click "about" it will take you to the about page and darken the about link in the navbar. But the link BEFORE the page you are on is highlighted because the -50 makes the navbar think that it is on the previous section. You can easily try this to see what I mean.
How can I fix this? Thanks. The reason I didn't add this onto my old question is because the person stopped looking at it.
Also please keep your explanations simple/dumb them down a little for me. I know very basic HTML and CSS, and I don't know any Javascript.
scrolling js:
//jQuery to collapse the navbar on scroll
$(window).scroll(function() {
if ($(".navbar").offset().top > 50) {
$(".navbar-fixed-top").addClass("top-nav-collapse");
} else {
$(".navbar-fixed-top").removeClass("top-nav-collapse");
}
});
//jQuery for page scrolling feature - requires jQuery Easing plugin
$(function() {
$('a.page-scroll').bind('click', function(event) {
var $anchor = $(this);
$('html, body').stop().animate({
scrollTop: $($anchor.attr('href')).offset().top -50
}, 1500, 'easeInOutExpo');
event.preventDefault();
});
});
js added at end of document as suggested by poster in previous question:
$(window).ready(function(){
$('div[class^="content-section"]').css('min-height', $(window).height());
})

You are putting the .active class on the wrong element somehow. You need to put the .active class on the clicked element. You should handle the active state with js. This is my solution based on your HTML structure but I'm sure there are different solutions as well.
$(document).on('click', '.page-scroll', function(event) {
var clicked = event.target; //get the clicked element
if($(clicked).closest('ul').hasClass('dropdown-menu')){ //check if clicked element is inside dropdown
$(clicked).closest('ul').parent().siblings().removeClass('active'); //remove active class from all
$(clicked).closest('ul').parent().addClass('active'); add active class on clicked element parent - in your case <li> tag.
}else{
$(clicked).parent().siblings().removeClass('active');
$(clicked).parent().addClass('active');
}
}
Let me know if this works for you.
EDIT after you posted your code
Try replacing your function with this:
$(function() {
$('a.page-scroll').bind('click', function(event) {
var $anchor = $(this);
$('html, body').stop().animate({
scrollTop: $($anchor.attr('href')).offset().top -50
}, 1500, 'easeInOutExpo');
if($($anchor).closest('ul').hasClass('dropdown-menu')){
$($anchor).closest('ul').parent().siblings().removeClass('active');
$($anchor).closest('ul').parent().addClass('active');
}else{
$($anchor).parent().siblings().removeClass('active');
$($anchor).parent().addClass('active');
}
event.preventDefault();
});
});

here is a work around this problem.
just change the contents of your scrolling-nav.js to the following:
//jQuery to collapse the navbar on scroll
$(window).scroll(function() {
if ($(".navbar").offset().top > 50) {
$(".navbar-fixed-top").addClass("top-nav-collapse");
} else {
$(".navbar-fixed-top").removeClass("top-nav-collapse");
}
});
//jQuery for page scrolling feature - requires jQuery Easing plugin
$(function() {
$('a.page-scroll').bind('click', function(event) {
var $anchor = $(this);
$('html, body').stop().animate({
scrollTop: $($anchor.attr('href')).offset().top -50
}, 1500, 'easeInOutExpo', function(){
$('ul.navbar-nav li, ul.dropdown-menu li').removeClass('active');
$($anchor).parent('li').addClass('active');
});
event.preventDefault();
});
});

Jquery hide/show scroll animation

When I click on any year column (2012, 2011, 2010, etc) it shows the content of each year and hide the other ones.
The problem it's that when I click (2011 column for example), the animation does all the effects at the same time confusing the user, I think I have to do it with animation steps, but I haven't been able to come to a jquery solution.
This is my code:
/* Scroll Function */
function scrollto(position){
$('html, body').stop().animate({
scrollLeft: position
}, 1000);
}
/* Calendar Scroll */
$(".sub_section_title").click( function(e) {
e.preventDefault();
$(".contenido_calendario").hide();
$(this).next(".contenido_calendario").toggle('slow');
scrollto($(this).offset().left - 352)
});
I have tried fixing the effect by using .queue() but it doesn't work, I don't know if the code it's well written also:
$(".sub_section_title").click( function(e) {
e.preventDefault();
$(".contenido_calendario").hide();
$(".contenido_calendario").queue(function() {
scrollto($(this).offset().left - 352);
$(this).dequeue();
});
$(".contenido_calendario").queue(function() {
$(this).next(".contenido_calendario").toggle('slow')
$(this).dequeue();
});
});
The animation should be:
Click 2011 > Scroll 2011 column to the left (hide 2012 content) > show animation of contents

You want to take advantage of the callback features of the jQuery animations. So for hide, for example, you could do:
var outerContainer = $(this);
$(".contenido_calendario").hide(500, function() {
outerContainer.next(".contenido_calendario").toggle('slow', function() {
scrollto(outerContainer.offset().left - 352);
});
});
This will ensure that the animations are run when the previous one is finished.