I would like to have a scroll to top arrow fixed in my page using angular bootstrap. Currently I have
<div class="col-md-1">
<div class="affix">
<div>
<a th:href="@{/}" href="#" target="_self"><img id="image" src="source" alt="yoli" width="50px" /></a>
</div>
<a href="#search-bar">Scroll to top</a>
</div>
</div>
<div class="col-md-6">
<div id="search-bar" ng-include="blabla"></div>
<li ng-repeat="something"></li>
</div>
However when the "Scroll to top" is click it only works first time since the url changes to ...#search-bar and when you click it again nothing happens. So how do I scroll to top without changing the url?
And also question how do I make the "Scroll to top" only show when the search-bar is not showing?
I was thinking about using $anchorScroll and using id'ed numbers on li and if it's higher then "element-3" then show the button, however not sure if that would work.
UPDATE: I am thinking of following this example, that is using navigation bars that is #search and #results and make the #search href visible on #results active and #results one hidden.
You can do this without jQuery as well:
function filterPath(string) {
return string
.replace(/^\//, '')
.replace(/(index|default).[a-zA-Z]{3,4}$/, '')
.replace(/\/$/, '');
}
const locationPath = filterPath(location.pathname);
document.querySelectorAll('a[href*="#"]').forEach(link => {
let thisPath = filterPath(link.pathname) || locationPath;
if ((location.hostname == link.hostname || !link.hostname)
&& (locationPath == thisPath)
) {
let hashName = link.hash.replace(/#/, '');
if (hashName) {
let targetEl = document.getElementById(hashName);
if (targetEl) {
link.addEventListener('click', () => {
event.preventDefault();
targetEl.scrollIntoView({
top: 50,
left: 0,
behavior: "smooth"
});
});
}
}
}
});
Here is how you can do it. Create a button:
<a href="#" class="scrollToTop">Scroll To Top</a>
CSS:
.scrollToTop{
width:100px;
height:130px;
padding:10px;
text-align:center;
background: whiteSmoke;
font-weight: bold;
color: #444;
text-decoration: none;
position:fixed;
top:75px;
right:40px;
display:none;
background: url('arrow_up.png') no-repeat 0px 20px;
}
.scrollToTop:hover{
text-decoration:none;
}
JavaScript:
$(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;
});
});
You can find a demo here . The source presented is taken from here .
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.