SetInterval SetTimeout Clearinterval

SetTimeout () executes code only once. If you want to call more than once, use SetInterval () or let code itself call SetTimeout () again.

First load is refreshed once  setTimeout (function () {    $.get (' <%= sdn_topo_vnets_url%> ', function (data) {      $ ( "#time_div"). ReplaceWith (data);        var max_len = 0;        var min_len = 100000000000;        for (var i = 0;i<linklen;++i)        {          if (Min_len > vms_value_tx[i]) Min_len = vms_value_tx[i];          if (Max_len < vms_value_tx[i]) Max_len = vms_value_tx[i];          if (Min_len > vms_value_rx[i]) Min_len = vms_value_rx[i];          if (Max_len < vms_value_rx[i]) Max_len = Vms_value_rx[i];        }    );  }, 10);//execute once after 10ms

　　

The SetInterval () method invokes a function or evaluates an expression according to the specified period (in milliseconds).

SetInterval (function () {    $.get (' <%= sdn_topo_vnets_url%> ', function (data) {      $ ("#time_div"). ReplaceWith (data);        var max_len = 0;        var min_len = 100000000000;        for (var i = 0;i<linklen;++i)        {          if (Min_len > vms_value_tx[i]) Min_len = vms_value_tx[i];          if (Max_len < vms_value_tx[i]) Max_len = vms_value_tx[i];          if (Min_len > vms_value_rx[i]) Min_len = vms_value_rx[i];          if (Max_len < vms_value_rx[i]) Max_len = Vms_value_rx[i];        }    );  }, 10000);//10s executes once

　　

The

SetInterval () method keeps calling functions until Clearinterval () is called or the window is closed. The ID value returned by SetInterval () can be used as a parameter to the Clearinterval () method.  
syntax  
SetInterval (code,millisec[, "Lang")  
parameter description  
Code required. The function to invoke or the code string to execute.  
Millisec must be. The time interval, in milliseconds, between periodically executing or calling code.  
return value  
A value that can be passed to Window.clearinterval () to suppress periodic execution of code.  
2,html DOM clearinterval () method  
definition and usage  
Clearinterval () method can be canceled by setinterval () to set the timeout.   The argument to the
Clearinterval () method must be the ID value returned by SetInterval ().  
syntax  
Clearinterval (Id_of_setinterval)  
parameter description  
Id_of_setinterval by SetInterval () The ID value returned.  
How to stop:  
The following example calls the clock () function every 50 milliseconds. You can also use a button to stop the clock: 

　　

SetInterval SetTimeout Clearinterval