javascript 每次单击按钮都重置setTimeout？
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Reset setTimeout every button click?
提问by idontknowhow
Here is my Code:
这是我的代码：
var sec = 10;
var timer = setInterval(function() {
$('#timer span').text(sec--);
}, 1000);
It sets a setTimeoutfor 10 seconds. I want to have a reset button that, clicked, calls setTimeoutagain with a 10 seconds delay.
它设置了setTimeout10 秒。我想要一个重置按钮，点击后会setTimeout延迟 10 秒再次调用。
回答by aroth
You would do this by storing the result of your setTimeout()call to some variable, and then passing the result that you stored to clearTimeout()when the button is clicked, before scheduling a new timeout and assigning it back to the same variable.
为此，您可以将setTimeout()调用结果存储到某个变量，然后在clearTimeout()单击按钮时传递存储的结果，然后再安排新的超时并将其分配回同一个变量。
Sounds a bit tricky but it's really very simple. Here is an example:
听起来有点棘手，但实际上非常简单。下面是一个例子：
回答by ?ime Vidas
HTML:
HTML：
<button id="resetButton">Reset</button>
JavaScript:
JavaScript：
var resetButton = $('#resetButton')[0],
timerId;
function timerExpired() {
alert('Timer expired');
}
$(resetButton).click(function() {
clearTimeout(timerId);
timerId = setTimeout(timerExpired, 10000);
}).triggerHandler('click');
Note: this JavaScript code should be placed inside a ready handler.
注意：此 JavaScript 代码应放置在就绪处理程序中。
Live demo:http://jsfiddle.net/QkzNj/
现场演示：http : //jsfiddle.net/QkzNj/
(You can set the delay to a smaller value like 3000(3 seconds) - that will make it easier to test the demo.)
（您可以将延迟设置为较小的值，例如3000（3 秒）——这将使测试演示更容易。）
回答by user278064
<div>Div</div>
var div = document.getElementsByTagName("div")[0];
function timedMsg() {
console.log("timeout expired.");
div.t = setTimeout(timedMsg, 1000);
}
timedMsg();
div.onclick = function() {
clearTimeout(div.t);
timedMsg();
};
