Home > Developer > JavaScript
The setInterval method can be used to call the function cyclically at a specified interval until the clearInterval method cancels the loop.
When the clearInterval method is used to cancel a loop, you must assign a value to the call of the setInterval method, and then the clearInterval method references the variable.
Copy codeThe Code is as follows:
<Script type = "text/javascript">
Var n = 0;
Function print (){
Document. writeln (n );
If (n = 1000 ){
Window. clearInterval (s );
}
N ++;
}
Var s = window. setInterval (print, 10 );
</Script>
Use setTimeout and clearTimeout to call latency. After the specified delay time, run the specified function only once. ClearTimeout is used in the same way as clearInterval.
Copy codeThe Code is as follows:
<Script type = "text/javascript">
Function printTime (){
Var time = new Date ();
Var year = time. getFullYear ();
Var month = (time. getMonth () + 1;
Var daynum = time. getDay ();
Var hour = time. getHours ();
Var min = time. getMinutes ();
Var sec = time. getSeconds ();
Var da = time. getDate ();
Var daystr;
Switch (daynum ){
Case 0: daystr = "Sunday ";
Break;
Case 1: daystr = "Monday ";
Break;
Case 2: daystr = "Tuesday ";
Break;
Case 3: daystr = "Wednesday ";
Break;
Case 4: daystr = "Thursday ";
Break;
Case 5: daystr = "Friday ";
Break;
Case 6: daystr = "Saturday ";
Break;
Default: daystr = "";
}
Var str = year + "year" + month + "month" + da + "day" + daystr + "" + hour + ":" + min + ":" + sec;
Document. getElementById ("t"). innerHTML = str;
Window. setTimeout (printtime, 1000 );
}
</Script>
<Body onload = "printTime ()">
<Br/>
<Div id = "t"> </div>
</Body>
Start building with 50+ products and up to 12 months usage for Elastic Compute Service
1 on 1 presale consultation
24/7 Technical Support 6 Free Tickets per Quarter Faster Response
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.
A comprehensive suite of global cloud computing services to power your business
Payment Methods We Support
