How to Create Simple jQuery Image Sliders with Sliding or Opacity Effects

Many developers prefer to avoid using pre-built plugins due to concerns about size or potential conflicts with existing JavaScript. For those who prefer to create their own sliders, here's a simplified approach using jQuery:

Key jQuery Functions:

• index(): Returns the position of an element within its sibling elements.
• eq(): Selects an element based on its position.

Approach:

• Retrieve the index of the selected trigger element.
• Match this index with the corresponding image using the eq() method.

1. FadeIn / FadeOut Effect

HTML:

<ul class="images">
  ...
</ul>

<ul class="triggers">
  ...
</ul>

CSS:

ul.images { position:relative; }
ul.images li { position:absolute; }

jQuery:

var target;
var triggers = $('ul.triggers li');
var images = $('ul.images li');
var lastElem = triggers.length-1;

triggers.first().addClass('active');
images.hide().first().show();

function sliderResponse(target) {
    images.fadeOut(300).eq(target).fadeIn(300);
    triggers.removeClass('active').eq(target).addClass('active');
}

2. Sliding Effect

HTML:

Same as for the FadeIn/FadeOut effect.

CSS:

.mask { ... }
ul.images { ... }
ul.images li { ... }

jQuery:

var target;
var triggers = $('ul.triggers li');
var images = $('ul.images li');
var lastElem = triggers.length-1;
var mask = $('.mask ul.images');
var imgWidth = images.width();

triggers.first().addClass('active');
mask.css('width', imgWidth*(lastElem+1) +'px');

function sliderResponse(target) {
    mask.stop(true,false).animate({'left':'-'+ imgWidth*target +'px'},300);
    triggers.removeClass('active').eq(target).addClass('active');
}

Shared jQuery Response for Both Sliders:

triggers.click(function() { ... });
$('.next').click(function() { ... });
$('.prev').click(function() { ... });
function sliderTiming() { ... }
function resetTiming() { ... }

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