External method from AJAX callback in JavaScript and jQuery
I have a function in JS and jQuery that triggers an AJAX call and has a block callback
to tell me when it's finished:
function ajaxCall(url, type, dataType, dataToSend, callback) {
if (dataType == undefined) dataType = "json";
if (dataToSend == undefined) dataToSend = null;
$.ajax({
url: url,
type: type,
dataType: dataType,
contentType: "application/json",
data: dataToSend,
async: true,
success: function (result) {
callback(result);
},
error: function (data, status) {
console.error("Server Error: " + status);
}
});
}
I am accessing it like this, but using external functions like showAjaxLoader()
just doesn't work! he says this function is undefined:
function registerUser(data) {
ajaxCall(pathServiceRegister, "POST", undefined, JSON.stringify(data), function (result) {
// SOME CODE THAT RUNS WHEN IT COMPLETE
// External method:
showAjaxLoader(false); // Doesn't work
});
});
function showAjaxLoader(show) {
var loader = $('.ajax-loader');
if (show) {
loader.fadeIn("fast");
} else {
loader.fadeOut("fast");
}
}
What am I doing wrong?
Thank:)
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3 answers
Developed a sample. it might be good practice. Try the following:
$(document).ready(function() {
$("button").click(function() {registerUser();});
});
var Scallback = function(arg) {
alert("Success :"+arg);
showAjaxLoader(true);
}
var Ecallback = function(arg) {
alert("Err :"+arg);
showAjaxLoader(true);
}
function showAjaxLoader(show) {
var loader = $('.ajax-loader');
if (show) {
loader.fadeIn("fast");
} else {
loader.fadeOut("fast");
}
}
function ajaxCall(url, type, Scallback, Ecallback) {
$.ajax({
url : url,
type : type,
async : true,
success : function(result) {
Scallback(result);
},
error : function(data) {
Ecallback(data)
}
});
}
function registerUser()
{
ajaxCall(pathServiceRegister, "GET", Scallback, Ecallback);
}
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