jquery ajax（）async false

Question

i have problem..

for(a=1;a<10;a++){
    $(".div").append("<div id="+a+"></div>")
        $.ajax({
              url: "file.php",
              data: "a="+a,
              type: "POST",
              async: false,
              success: function(data) {
                $("#"+a).html(data);
              }
        });

}
 $("div").click(function(){
        alert("it works");
 });

problem is: is I didn't put there async: false data from file.php are only in last div so with id 9 but now there is async: false - so data are in every div so that is good

but if i want click while it was loading by ajax it doesn't work (only after finished all ajax-es)

how resolve this problem? (maybe the false is that am I using ajax. I can use getJSON ect..)

thanks for helping

Answer 1

If you want the user to be able to use the interface while the ajax call is running, you should change your async to true . It has also been noted by James Allardice that in this scenario you need to use a javascript closure to retain the value of your original id for when the ajax call is returned. For more information regarding javascript closures check out how-do-javascript-closures-work , a really good question found here on stackoverflow.

for(id = 1; id < 10; id++){
    $(".div").append("<div id='" + id + "'></div>");

    (function(id) {
        $.ajax({
            url: "file.php",
            data: "a=" + id,
            type: "POST",
            async: true,
            success: function(data) {
                $("#"+ id).html(data);
            }
        });
     }(id));
}

Answer 2

A good solution to this is to use a recursive function.

function appendDivs(limit, count) {
    count = count || 1;
    if (count <= limit) {
        $(".div").append("<div id=" + count + "></div>");
        $.ajax({
            url: "file.php",
            data: "a=" + count,
            type: "POST",
            async: true,
            success: function(data) {
                $("#" + count).html(data);
                appendDivs(limit, count + 1);
            },
            error: function(e) {
                alert('Error - ' + e.statusText);
                appendDivs(limit, count + 1);
            }
        });
    } else {
        return false;
    }
}
appendDivs(10);