每x秒重复一次代码，但如果[在这里插入检查]则不重复 [英] Repeat code every x seconds but not if [insert check here]

问题描述

这是对这个问题的跟进，我找到了如何使代码每隔x秒重复一次。是否有可能制作一个可以改变这种情况的活动？即我有一个复选框，用于控制是否重复，所以我想我需要这样的东西：

This is a followup to this question, where I found out how to make code be repeated every x seconds. Is it possible to make an event that can change this? I.e. I have a checkbox which is meant to control whether this is repeated or not, so I figured I'd need something like this:

$(checkbox).bind("change", function() {
    switch(whether if it is ticked or not) {
        case [ticked]:
            // Make the code repeat, while preserving the ability to stop it repeating
        case [unticked]:
            // Make the code stop repeating, while preserving the ability to start again
    }
});

我不知道我能把什么放在案例中 s。

I have no idea what I could put in the cases.

推荐答案

function fooFunc() {
    $('#foo').text(+new Date());
}
var id;
var shouldBeStopped = false;
$('input').change(function() {
    if (shouldBeStopped) 
        clearInterval(id);
    else 
        id = setInterval(fooFunc, 200);

    shouldBeStopped = !shouldBeStopped;
});​

直播演示

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