Preventing the ScrollTop Function from Triggering in Jquery Upon Link Click

Hey there! I'm currently facing an issue with jquery scrollTop. Whenever I navigate to the id #linkA and click it again, an unnecessary scroll is added. I'd like to prevent scrolling after clicking the link. Imagine these three paragraphs have a significant gap between each other.

Here's the HTML:

<ul>
    <li><a href="#linkA"> Link A </a></li>
    <li><a href="#linkB"> Link B </a></li>
</ul>

<p id="#linkA">Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>

<p id="#linkB">Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>

Jquery code:

$(document).ready(function() {

$('.a').click(function() {
    $('body').animate({
        scrollTop: $("#linkA").offset().top
    }, 500);
    return false;

});

$('.b').click(function() {
    $('body').animate({
        scrollTop: $("#linkB").offset().top
    }, 500);
    return false;
});
});

$(window).scroll(function() {
    var windowTop = $(document).scrollTop();

    if (windowTop > 0 && windowTop <= 200) {
        // Parallaxing code goes here
    }

});

Do you have any suggestions on how to disable scrollTop when a link is clicked? Appreciate your help!

Answer №1

If I understand correctly, you can utilize the HTML5 data API to block subsequent clicks. Here's an example:

$('.a').click(function() {
    if (!$(this).data('clicked')) {
        $('body').animate({
            scrollTop: $("#linkA").offset().top
        }, 500);
    } else {
        $(this).data('clicked', true);
    }
    return false;
});

Answer №2

Have you considered checking the scrollTop value to resolve this issue? Repeating the same code may not be a major problem, but it could lead to issues if one is changed and the other isn't.

You might want to try something like this:

$('.a').click(ScrollToPos("linkA"));
$('.b').click(ScrollToPos("linkB"));

function ScrollToPos(link) {
    var currentTop = $(window).scrollTop();
    var linkTop = $("#" + link).scrollTop();

    if (currentTop != linkTop) {
        $('body').animate({
            scrollTop: $("#" + link).offset().top
        }, 500);
    }
}

This code snippet hasn't been tested, so feel free to give it a try to see if it helps in comparing the scroll positions. It's also worth considering implementing a threshold for comparison. For instance, when a user clicks on linkA and the scrollTop is set to 25. If they click again, the scroll positions might not match even though they are in the same section. Introducing a threshold where the positions need to be within a certain range could be beneficial.

Answer №3

When you initially scroll, the position of your elements may shift. To remedy this, a simple solution would be to scroll to the top of the page before navigating to your desired link. Here is an example code snippet:

$('.link').click(function() {
    $('html, body').animate({ scrollTop: 0 }, 0);
    $('html, body').animate({
        scrollTop: $("#myLink").offset().top
    }, 500);
    return false;
});

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