Application scenarios and implementation methods of jQuery focus map

Application scenarios and implementation methods of jQuery focus map

With the development of Internet technology, focus map in web design has become a common element for display Pictures, information or products. jQuery, a popular JavaScript library, provides a rich set of features and plug-ins, including methods for creating focus maps. This article will introduce the application scenarios and implementation methods of jQuery focus map, and give specific code examples.

1. Application scenarios

1. Carousel image on website homepage: Display important promotional information or products on the homepage of the website. You can use focus images to achieve the carousel effect and attract users’ attention. force.
2. Focus image on the news information page: To display popular news or important information on the news information page, you can use the focus image to achieve a display effect that combines graphics and text.
3. Focus image on the product details page: Display multi-angle pictures or details of the product on the product details page, and realize the image switching function through the focus image to improve the user experience.
4. Brand promotion page focus image: Display brand image, product features and other content on the brand promotion page. You can use focus images to achieve dynamic display effects and increase interactivity.

2. Implementation method

1. HTML structure

<div class="slider">
    <ul class="slides">
        <li><img src="/static/imghwm/default1.png"  data-src="image1.jpg"  class="lazy" alt="Image 1"></li>
        <li><img src="/static/imghwm/default1.png"  data-src="image2.jpg"  class="lazy" alt="Image 2"></li>
        <li><img src="/static/imghwm/default1.png"  data-src="image3.jpg"  class="lazy" alt="Image 3"></li>
    </ul>
    <div class="controls">
        <span class="prev">Previous</span>
        <span class="next">Next</span>
    </div>
</div>

2. CSS style

.slider {
    position: relative;
    width: 100%;
    overflow: hidden;
}

.slides {
    list-style: none;
    margin: 0;
    padding: 0;
    width: 300%;
}

.slides li {
    float: left;
    width: 33.333%;
}

.controls {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
}

.controls span {
    cursor: pointer;
    padding: 5px 10px;
    background: #333;
    color: #fff;
    margin: 0 5px;
}

3. JavaScript code (using jQuery plug-in Cycle2)

<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery.cycle2/2.1.6/jquery.cycle2.min.js"></script>

<script>
$(document).ready(function() {
    $('.slides').cycle({
        slides: '> li',
        pauseOnHover: true,
        prev: '.prev',
        next: '.next'
    });
});
</script>

Through the above code example, we have implemented a simple focus chart carousel effect. In practical applications, the style and functions can be adjusted as needed, and animation effects, automatic playback and other functions can be added to achieve a more colorful focus map display.

Summary: jQuery focus map is one of the commonly used elements in web design and is widely used in various scenarios. By learning and mastering the implementation method of jQuery focus map, you can add new highlights to web design, improve user experience, and bring better effects and feedback. I hope readers can flexibly use jQuery focus charts in practice to add luster to their projects.

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