CODEWITHSUNDEEP
javascript
sharmila
sharmila

Reputation: 1533

How to find time elapsed between two consecutive requests?

I have two checkboxes on selection of each one will raise a ajax request in order to get response from server. I need to call a method when there is atleast 2 seconds gap after the last request is made. Any idea? This means i do not want to call the methods when checkboxes are clicked continously for less than 2 seconds gap.

Upvotes: 0

Views: 232

Answers (3)

Kumar Ankit
Kumar Ankit

Reputation: 5

var timeOut=0;
$(".selector").on('change',function(){
    if(timeOut == 0)
    {
        timeOut=2;  //change timeOut variable to "2" to be used in if condition above
        //your ajax request code ;  
        setTimeout(function(){timeOut=0},2000);   // changing back timeOut to 0 after 2 sec.
    }
});

Upvotes: 1

Imperative
Imperative

Reputation: 3183

If it is your server, which you call with ajax, you could set up a lock on on the server for the specific client (e.g. using a mysql table) with the pair of identification & time of the call. The next time a call is made, you check the table for recent calls. When a call is found and older than 2 seconds: delete it and proceed. I could also think of a cookie solution, but stuff like this should be double checked on the server side always, since local code can be manipulated.

Upvotes: 0

alex
alex

Reputation: 490253

Set a timeout that will be activated in 2 seconds, and cancel it and restart it whenever someone clicks another checkbox.

var timeout;
var checkboxClickHandler = function() {
    clearTimeout(timeout);
    var timeout = setTimeout(function() {
          // Your logic.
    }, 2e3);
};

Upvotes: 2

Related Questions