I have two sliders.

The sliders are operated by arrows.

The sliders and arrows have the same class.

At the moment when one of the arrows on Slider A is pressed, BOTH slider A and slider B move.

Is it possible to click the arrow on slider A and only have slider A move WITHOUT changes classes or using ids.

Here is code for the sliders:

HTML:

    <div class="slider">
    <div class="arrow-left"></div>
<div class="slide"></div>
<div class="slide on"></div>
<div class="slide"></div>
<div class="arrow-right"></div>
    </div>

    <div class="slider">
        <div class="arrow-left"></div>
    <div class="slide"></div>
    <div class="slide on"></div>
    <div class="slide"></div>
    <div class="arrow-right"></div>
        </div>

CSS:

.slider {
    display: flex;
    justify-content: space-between;
    margin-top: 100px;
    padding-right: 10px;
    padding-left: 10px;
    width: 90%;
    margin-left: auto;
    margin-right: auto;
    align-items: center;
}

.slide {
    background-color: red;
    width: 150px;
    height: 50px;
    margin-left: 50px;
    margin-right: 50px;
    position: relative;
    opacity: 0.5;
}

.arrow-left {
    background: url('../images/arrowleft.svg');
    width: 50px;
    cursor: pointer;
    height: 50px;
    background-repeat: no-repeat;
    z-index: 5;
}

.arrow-right {
    background: url('../images/arrowright.svg');
    width: 50px;
    height: 50px;
    cursor: pointer;
    background-repeat: no-repeat;
    z-index: 5;
}

.on {
    height: 500px;
   min-width: 300px;
    opacity: 1;
}

Javascript

    $('.slider').each(function() {
    $(this).find('.arrow-left').on("click", function() {
        $('.slide').animate({
            left: "-=33%"
        })
        $('.on').next().addClass('on')
        $('.on').prev().removeClass('on')
    })

    $(this).find('.arrow-right').on("click", function() {
        $('.slide').animate({
            left: "+=33%"
        })
        $('.on').prev().addClass('on')
        $('.on').next().removeClass('on')
    })
})

>Solution :

You can do like this, saving the jQuery element of the slider you are working on as a function local variable to restrict the class selections with find

$('.slider').each(function() {
    var _slider = $(this);
    
    _slider.find('.arrow-left').on("click", function() {
        _slider.find('.slide').animate({
            left: "-=33%"
        })
        _slider.find('.on').next().addClass('on')
        _slider.find('.on').prev().removeClass('on')
    })

    _slider.find('.arrow-right').on("click", function() {
        _slider.find('.slide').animate({
            left: "+=33%"
        })
        _slider.find('.on').prev().addClass('on')
        _slider.find('.on').next().removeClass('on')
    })
})

Not tested but it should work

NOTE: you should also be able to chain the addClass and removeClass too. Because once you added the class, the second line now selects 2 elements (with the one you just added the class on) and can lead to unexpected things. Chaining the calls should solve this (you need an extra prev or next here)

_slider.find('.on').next().addClass('on').prev().prev().removeClass('on')

or with a variable similar to slider

var _on = _slider.find('.on');
_on.next().addClass('on');
_on.prev().removeClass('on');