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@Malintha

Malintha/callback4.js Secret

Created Jun 7, 2016
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find([1,2], response);
function response(err, result) {
if(err) {
alert(err);
}
else {
alert("operation successful : "+result);
}
}
alert("meanwhile I show up");
function find(elements, callback) {
//The time consuming operation
setTimeout(function() {
if(elements) {
elements.push(3,4,5);
callback(null, elements);
}
else {
callback("Elements array should not be null", null);
}
} ,2000);
}
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