I'm trying to pass in a function to run when the AJAX call is successful, however it's not working as it say's that "callback is not a function".
Example:
Calling Code:
getGrades(var);
JS:
function getGrades(grading_company) {
// Set file to get results from..
var loadUrl = "ajax_files/get_grades.php";
// Set data string
var dataString = 'gc_id=' + grading_company;
// Set the callback function to run on success
var callback = 'showGradesBox';
// Run the AJAX request
runAjax(loadUrl, dataString, callback);
}
function showGradesBox(response) {
// Code here...
}
function runAjax(loadUrl, dataString, callback) {
jQuery.ajax({
type: 'GET',
url: loadUrl,
data: dataString,
dataType: 'html',
error: ajaxError,
success: function(response) {
callback(response);
}
});
}
Now if I replace this line below with the function name itself it works:
callback(response);
But I can't get it to work like above where I get the function name from a passed in parameter.
Yes, it is deprecated in jQuery 1.8 onwards.
jQuery - ajaxSuccess( callback ) Method The ajaxSuccess( callback ) method attaches a function to be executed whenever an AJAX request completes successfully. This is an Ajax Event.
showGradesBox
is a string in your code. So you have two options to execute the callback function:
If you want to keep the string you can use
this[callback](response);
(if callback
is defined in global scope you can also use window[callback](response);
Or you can pass the function directly:
var callback = showGradesBox;
(in this case you can keep your existing code for callback execution)
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