setTimeout，setInterval的第三个参数
setTimeout(fn, time, param1,param2,....) 1、fn（必传）需要执行的函数 2、time（非必传） 传值时：表示过了time后才执行fn函数 不传时：默认为0 3、 param：（非必传）作为fn的参数传入 来源： https://www.cnblogs.com/fengqi0505/p/11810577.html
setinterval
js 倒计时
var step = 59; var _res = setInterval(function () { $(".sendSms").attr("disabled", true);//设置disabled属性 $('.sendSms').text('重新发送' + step + '秒'); step -= 1; if (step <= 0) { $(".sendSms").removeAttr("disabled"); //移除disabled属性 $('.sendSms').text('获取验证码'); clearInterval(_res);//清除setInterval } }, 1000); 来源： https://www.cnblogs.com/love1226/p/11810431.html
Is there any way to kill a setInterval loop through an Onclick button
问题 So, I got an infinite loop to work in this function using setInterval attached to an onClick. Problem is, I can't stop it using clearInterval in an onClick. I think this is because when I attach a clearInterval to an onClick, it kills a specific interval and not the function altogether. Is there anything I can do to kill all intervals through an onClick? Here's my .js file and the calls I'm making are input type="button" value="generate" onClick="generation(); input type="button" value=
jQuery - Multiple setInterval Conflict
I am a jQuery novice and each of the following work fine on their own, but get out of time when working together. What am I doing wrong? Any improvement on the code would be appreciated too... It is to be used to rotate advertising. <!--- Header Rotator ---> <script type="text/javascript"> $(document).ready(function() { $("#header").load("header.cfm"); var refreshHeader = setInterval(function() { $("#header").load("header.cfm"); }, 10000); }); </script> <!--- Main Rotator ---> <script type="text/javascript"> $(document).ready(function() { $("#main").load("main.cfm"); var refreshMain =
Dynamic date and time with moment.js and setInterval
问题 I'm trying to find out how I can display dynamic date and time using moment.js. Apparently I can't figure out to use setInterval properly. If possible I'd prefer not to use jQuery as moment.js dosn't need it. Here's what I have so far: http://jsfiddle.net/37fLF/2/. $(document).ready(function () { var datetime = $('#datetime'), date = moment(new Date()), update = function(){ datetime.html(date.format('dddd, MMMM Do YYYY, h:mm:ss a')); }; update(); setInterval(update, 1000); }); 回答1: I've made
react hooks and setInterval
Is there any alternative to just keeping a "clock" in the background to implement auto-next (after a few seconds) in carousel using react hooks? The custom react hook below implements a state for a carousel that supports manual (next, prev, reset) and automatic (start, stop) methods for changing the carousel's current (active) index. const useCarousel = (items = []) => { const [current, setCurrent] = useState( items && items.length > 0 ? 0 : undefined ); const [auto, setAuto] = useState(false); const next = () => setCurrent((current + 1) % items.length); const prev = () => setCurrent(current ?
javascript setInterval: do calls overlap?
问题 Suppose I have setInterval(PostToServer, 1000); . PostToServer function makes ajax post, which may take longer than a second. So what happens then: a second call is made while the first hasn't finished or the end of call is awaited before making new one? 回答1: The calls overlap. setInterval ensures that the functions are run regularly, without waiting for the previous result. If you want to await the response, change the interval method to a poller. When the time has passed AND the server has
Checking whether clearInterval has been called?
问题 Given this code: bob = setInterval(function, 1000); clearInterval(bob); Is there now a way to know if that interval has been cleared? Currently, I keep track of this myself, by unsetting ' bob ', but I'm curious if my extra line of code is unnecessary: clearInterval(bob); bob = null; if (!bob) itIsCleared(); Thanks! 回答1: The return value of setInterval is just a unique id you use to pass back to clearInterval . It's not a structured object with any additional information, nor does it get set
How to start setInterval loop immediately? [duplicate]
问题 This question already has answers here : Execute the setInterval function without delay the first time (13 answers) Closed 5 years ago . In a simple setInterval setInterval(function() { // Do something every 9 seconds }, 9000); The first action will happen after 9 seconds ( t=9s ). How to force the loop to perform the first action immediately ( t=0 )? I think it is due to the mechanism of setInterval to have Delay - Action - Delay - Action ... loop; instead of Action - Delay - Action - Delay
Dynamic date and time with moment.js and setInterval
I'm trying to find out how I can display dynamic date and time using moment.js . Apparently I can't figure out to use setInterval properly. If possible I'd prefer not to use jQuery as moment.js dosn't need it. Here's what I have so far: http://jsfiddle.net/37fLF/2/ . $(document).ready(function () { var datetime = $('#datetime'), date = moment(new Date()), update = function(){ datetime.html(date.format('dddd, MMMM Do YYYY, h:mm:ss a')); }; update(); setInterval(update, 1000); }); I've made a few modifications in your code: Note that the method update is now outside the ready event handler code