如何在Javascript / jquery中跳过setTimeout

时间:2015-08-11 06:11:12

标签: javascript jquery javascript-events

我有一个脚本应该每隔8秒调用另一个javascript函数。但是,在某些情况下,我需要跳过处理8秒延迟的seTimeout函数(它是一个滑块,根据用户点击的内容,我需要立即到达特定的幻灯片)。这可能在JavaScript中?

例如,根据用户点击的内容,我可能希望立即执行switchBullets(4); switchNews("Title 4", "image4.jpg", "image4Logo.jpg", ""),无论动画目前在哪里。

脚本如下所示:

function animateNews() {
    $(window).load(function() {
    
    switchBullets(1);
    switchNews("Title 1", "image1.jpg", "image1Logo.jpg", "");
    setTimeout(function() { switchBullets(2); switchNews("Title 2", "image2.jpg", "image2Logo.jpg", "") 
    setTimeout(function() { switchBullets(3); switchNews("Title 3", "image3.jpg", "image3Logo.jpg", "") 
    setTimeout(function() { switchBullets(4); switchNews("Title 4", "image4.jpg", "image4Logo.jpg", "") 
    setTimeout(function() { animateNews(); 
                          }, 8000);
                          }, 8000);
                          }, 8000);
                          }, 8000);
    }
)};

1 个答案:

答案 0 :(得分:1)

将您的数据与逻辑分开。请改用setInterval()使其永久运行。当用户点击时,请调用click()并取消setInterval。

var timerId;
var data = [
    {title: 'Title 2', img1: 'image2', img2: 'image2Logo.jpg', other: ''},
    {title: 'Title 3', img1: 'image3', img2: 'image3Logo.jpg', other: ''},
    {title: 'Title 4', img1: 'image4', img2: 'image4Logo.jpg', other: ''}
];
$(window).load(function() {
    switchBullets(2);
    switchNews("Title 2", "image2.jpg", "image2Logo.jpg", "");
    timerId = beginSlider();
});

function beginSlider() {
    var i = 1;
    return setInterval(function () {
        switchBullets(i+2);
        switchNews(data[i].title, data[i].img1, data[i].img2, data[i].other);
        if (i === 2) { i = 0; }
        else { i += 1; }
    }, 8000);
}
function click(j) {
    clearInterval(timerId);
    switchBullets(j+2);
    switchNews(data[j].title, data[j].img1, data[j].img2, data[j].other);
    // could start slider again after 8 sec.
    // timerId = beginSlider();
}