There are times while writing javascript, when we might want to halt the execution of Javascript for a small period say 2 seconds. May be while writing test cases, or avoiding race condition, etc. Javascript provides (natively) no way to do this, but we can write our own sleep function....
Javascript sleep function by Promise in loop, Sleep function is executing asynchronously and the for loop finished before executing any of the sleep calls. So, the last value of for loop will be 3, and window.open function will receive as parameter the value of urls [3] which is undefined....
除了Narrative JS,jwacs(Javascript With Advanced Continuation Support) 也致力于通过扩展JavaScript语法来避免编写让人头痛的异步调用的回调函数。用jwacs 实现的sleep,代码是这样: function sleep(msec) { var k = function_continuation; setTimeout(function() { resume k <- mesc; }, msec); suspend; } 1...
JavaScript 解释器等待网络请求完成,首先记录公共仓库的数量,然后记录“Hello!”消息。 将Sleep函数引入原生JavaScript 如果你还在看这篇文章,那么我猜你一定是想阻塞那个执行线程,并让JavaScript等待一下。 下面是你可能会这样做的方式: function sleep(milliseconds) { const date = Date.now(); let currentDate = n...
function sleep(millis) { var notifier = NjsRuntime.createNotifier(); setTimeout(notifier, millis); notifier.wait->(); } 没错,看到->()这种语法,就象刚看到Prototype的$()函数一样让我惊为天人。只是直接在浏览器中这段脚本是会报告语法错误的。实际上它们须要经过预编译成client浏览器认可的JavaScript。
Two new JavaScript features (as of 2017) helped write this "sleep" function: Promises, a native feature of ES2015(aka ES6). We also usearrow functionsin the definition of the sleep function. Theasync/awaitfeature lets the code explicitly wait for a promise to settle (resolve or reject). ...
javascript中实现sleep函数 function sleep(d){ for(var t = Date.now();Date.now() - t <= d;); }
对于那些只想快速解决问题而不想深入了解技术细节的人,我们也有简单明了的解决方案。下面是如何在你的JavaScript工具箱中添加一个 sleep 函数的最直接方式: 复制 function sleep(ms) { return new Promise(resolve => setTimeout(resolve, ms)); } console.log('Hello'); ...
PHP has a sleep() function, but JavaScript doesn't. Well, this is because it's useless, you might say, and you'll be right. But for simulating heavy processing and for misc performance measurements, it could be useful. So here's how you can go about creating a sleep() in JavaScript...
function sleep(milliSeconds){ // call sleep method in flash getFlashMovie("flashSleep").flashSleep(milliSeconds); } function getFlashMovie(movieName){ // source: http://kb2.adobe.com/cps/156/tn_15683.html var isIE = navigator.appName.indexOf("Microsoft"...