是的。这应该可以在所有主流浏览器上运行。

以下是我的方法:

var preloadImages = function (srcs, imgs, callback) {
    var img;
    var remaining = srcs.length;
    for (var i = 0; i < srcs.length; i++) {
        img = new Image;
        img.onload = function () {
            --remaining;
            if (remaining <= 0) {
                callback();
            }
        };
        img.src = srcs[i];
        imgs.push(img);
    }
};

const preloadImage = src => 
  new Promise((resolve, reject) => {
    const image = new Image()
    image.onload = resolve
    image.onerror = reject
    image.src = src
  })


// Preload an image
await preloadImage('https://picsum.photos/100/100')

// Preload a bunch of images in parallel 
await Promise.all(images.map(x => preloadImage(x.src)))

这就是我所做的，用承诺:

const listOfimages = [
    {
        title: "something",
        img: "https://www.somewhere.com/assets/images/someimage.jpeg"
    },  
    {
        title: "something else",
        img: "https://www.somewhere.com/assets/images/someotherimage.jpeg"
    }
];

const preload = async () => {
    await Promise.all(
        listOfimages.map(
            (a) =>
                new Promise((res) => {
                    const preloadImage = new Image();
                    preloadImage.onload = res;
                    preloadImage.src = a.img;
                })
        )
    );
}

CSS2备选:http://www.thecssninja.com/css/even-better-image-preloading-with-css2

body:after {
  content: url(img01.jpg) url(img02.jpg) url(img03.jpg);
  display: none; 
}

CSS3可选:https://perishablepress.com/preload-images-css3/ (H/T岭坝)

.preload-images {
  display: none; 
  width: 0;
  height: 0;
  background: url(img01.jpg),
              url(img02.jpg),
              url(img03.jpg);
}

注意:带有display:none的容器中的图像可能无法预加载。 也许可视性:隐藏会更好，但我还没有测试过。感谢Marco Del Valle指出这一点

是的。这应该可以在所有主流浏览器上运行。