In order to meet my requirement, I am looking for a JavaScript function that can continuously poll the database via AJAX to check for a specific status. When the status is "active," I want an alert to notify me that the case is now active. The JavaScript should check the database every 2 seconds until it returns the "active" status. Can you suggest an elegant and efficient solution for this task? Below is a sample JavaScript code snippet outlining what I aim to accomplish:
function ReportAsActivePoll()
{
for(var i=0; i<10; i++)
{
setTimeout(StatusIsActive,(i*2000));
if(statusIsActive)
{
ReportAsActive();
break;
}
}
}
var statusIsActive = false;
function StatusIsActive(case)
{
statusIsActive = GetStatusFromDB(case) == "active";
}
function ReportAsActive()
{
alert("case is now active")
}
Some additional points to consider:
- I acknowledge that the provided code snippet is not entirely accurate - it serves as a visual aid only.
- The current implementation will invoke StatusIsActive 10 times in total. My intention is to terminate these calls once the status becomes active. However, due to the nature of polling, I understand that all calls need to be queued up beforehand, presenting a challenge in terms of stopping the process prematurely.