5.2.8 提问:介绍⼀种在WordPress中实现图⽚懒加载的⽅法,并解释其⼯作原理。
实现图⽚懒加载的⽅法在WordPress中实现图⽚懒加载的⽅法是通过使⽤JavaScript插件,如a3 Lazy Load。这样的插件可以延迟加载页⾯上的图⽚,仅当⽤户滚动到图⽚位置时才加载图⽚,从⽽提⾼页⾯加载速度并节省带宽。⼯作原理
1. 当页⾯加载时,插件会替换标签中的src属性为data-src属性,将图⽚链接保存在data-src中
2. ⽤户滚动页⾯时,JavaScript检测图⽚是否进⼊可视区域
3. 若图⽚进⼊可视区域,JavaScript将data-src中的图⽚链接赋值给src属性,触发图⽚加载⽰例:

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I will design rough sketches for upto 5 Screens of your website/Mobile app.
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