CODEWITHSUNDEEP
jqueryajax
Dom M.
Dom M.

Reputation: 3869

jQuery: Controlling order of events

I'm having issues with some jQuery code I have.

Using $.each I am looping through a few values and calling some php code. After this $.each loop is finished, I would like to load a div with certain content. I have tried loading the div after the $.each statement, but the load statement is still executed first, displaying the wrong value. When I put this load inside the $.each it works, although it loads after each iteration instead of at the end. Any ideas?

Here is the relevant part my code:

$.each(steps, function(n,step){
            $.post("utility.php", {
                utility: "getStepValue",
                step: step
            },
            function(data) {
                // offset clock
                var step_value = data;
                $.post("utility.php", {
                    utility: "offsetClock",
                    step_value: step_value
                },
                function(data){
                    // when load statement inserted here, it works fine
                });
            });
        }
    });

    // this statement finishes before the $.each, showing the wrong value
    $("#clock").load("utility.php", {
        utility: "displayClock"
    });

Upvotes: 0

Views: 288

Answers (1)

Seb
Seb

Reputation: 25147

Get the number of steps. Then, do the $("#clock").load("utility.php" ... inside the second callback in the loop only if the current index is the same as the number of steps - 1. Something like this:

var count = steps.length;
$.each(steps, function(n,step){
            $.post("utility.php", {
                utility: "getStepValue",
                step: step
            },
            function(data) {
                // offset clock
                var step_value = data;
                $.post("utility.php", {
                    utility: "offsetClock",
                    step_value: step_value
                },
                function(data){
                  if(n == count - 1){
                    $("#clock").load("utility.php", {
                      utility: "displayClock"
                    });
                  }
                });
            });
        }
    });

Upvotes: 1

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