javascript - 无间隔停止函数循环

Question

我有一个名为 particleAppear 的 JS 函数，它是一个循环:

var particles = new Array("pt0","pt1","pt2","pt3");

function particleAppear(){
    var genPoint = Math.floor(Math.random() * (720 - 4 + 1)) + 4;
    var particle = particles[Math.floor(Math.random()*particles.length)];

    $('#particles').append('<div class="'+particle+'" style="position: absolute; top: '+genPoint+'px; left: -4px"></div>');

    var rtime1 = Math.floor(Math.random() * (42000 - 32000 + 1)) + 32000;
    var rtime2 = Math.floor(Math.random() * (42000 - 32000 + 1)) + 32000;
    var rtime3 = Math.floor(Math.random() * (42000 - 32000 + 1)) + 32000;
    var rtime4 = Math.floor(Math.random() * (42000 - 32000 + 1)) + 32000;

    $('.pt0').animate({left: '+=1280px'}, rtime1, "linear",function(){
        $(this).remove();
    });
    $('.pt1').animate({left: '+=1280px'}, rtime2, "linear",function(){
        $(this).remove();
    });
    $('.pt2').animate({left: '+=1280px'}, rtime3, "linear",function(){
        $(this).remove();
    });
    $('.pt3').animate({left: '+=1280px'}, rtime4, "linear",function(){
        $(this).remove();
    });

    var randomTimeGen = Math.floor(Math.random() * (1500 - 450 + 1)) + 450;
    setTimeout(particleAppear,randomTimeGen);
}

如您所见，使用的循环不是 setInterval 而是 setTimeout，它会在 450 到 1500 毫秒之间的随机时间后重新运行该函数。我怎样才能使用 JAVASCRIPT/JQUERY 停止它？

Answer 1

您可以将超时的数字 id 存储在变量中并清除它:

var timeout = setTimeout(particleAppear,randomTimeGen);

clearTimeout(timeout);