// Performing an ajax request in jQuery
$.ajax( { url : '', data: {}, dataType:'jsonp', jsonpCallback: 'callbackName', type: 'post'
,success:function (data) {
console.log('ok');
},
error:function () {
console.log('error');
}
});
Is there a way to achieve the same functionality using pure JavaScript?
let request = new XMLHttpRequest();
request.open("POST", 'http://forexplay.net/ajax/quotes.php');
request.onreadystatechange = function() {
if (request.readyState == XMLHttpRequest.DONE) {
if(request.status == 200){
console.log('Server Response: ' + request.responseText );
}else{
console.log('Error Occurred: ' + request.statusText )
}
}
}
request.send(data);
I often overlook the case sensitivity in XMLHttpRequest requests.
This scenario involves not making an ajax call, but rather initiating a JSONP request. The good news is that replicating this process is quite simple and functions smoothly across all browsers.
var s = document.createElement("script"),
callback = "jsonpCallback_" + new Date().getTime(),
url = "http://forexplay.net/ajax/quotes.php?callback=" + callback;
window[callback] = function (data) {
// Success!
console.log(data);
};
s.src = url;
document.body.appendChild(s);
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