console.log JSON数据？

Problem

I'm trying to log the data returned from a JSON call, and console.log(jsonData) doesn't seem to be working.

Code

$(document).ready(function() {
    $("#users li a:first-child").click(function() {

        var id = this.href.replace(/.*=/, "");
        this.id = "delete_link_" + id;

        if(confirm("Are you sure you want to delete this user?"))
        {
            $.getJSON("delete.php?ajax=true&id=" + id, function(data) {
                console.log(data.success);
            });
        }

        return false;
    });
});

Returned by delete.php

{"id": $id, "success": 1} upon success.
{"id": $id, "success": 0, "error": "Could not delete user."} upon failure.

Your JSON isn't valid:

{'id' : 2, 'success' : 1}

It should have double quotes:

{"id" : 2, "success" : 1}

Based on that I think you're manually building the JSON string, I would suggest using json_encode() instead:

$result = new stdClass;
$result->id = 2;
$result->success = 1;

echo json_encode($result);

Outputs

{"id":2,"success":1}