javascript - 来自指定变量的 jQuery 计数器

Question

如果我有下面的变量

$(document).ready(function() {
    var minsecond = 1;
    var maxseconds = 4;
    var updateinterval = 1;
    var interval = updateinterval*1000;
    window.setInterval(function(){
    var currentseconds = ; //value increasing by 1 every var updateinterval (value) in seconds  from var minsecond value until it reaches var maxseconds and resetting to var minsecond value and cycling again
    $("span").html(currentseconds);
    }, interval);
});
​

我如何创建一个计数器，它从 var minsecond 的值开始，每隔 var updateinterval 以秒为单位增加 1 到值 var maxsecond 然后在 var minsecond 重新启动 http://jsfiddle.net/TnNhA/

Answer 1

我想像下面这样的东西就是你想要的，

DEMO

$(document).ready(function() {
    var minsecond = 1;
    var maxseconds = 4;
    var updateinterval = 1;
    var interval = updateinterval*1000;

    var currentseconds = minsecond;

    window.setInterval(function(){
        if (currentseconds > maxseconds ) {
             currentseconds = minsecond;
        }

        $("span").html(currentseconds++);
    }, interval);
});