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How can I make an AJAX call without jQuery?

How can I make an AJAX call using JavaScript, without using jQuery?

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If you don't want to include JQuery, I'd try out some lightweight AJAX libraries.

My favorite is reqwest. It's only 3.4kb and very well built out: https://github.com/ded/Reqwest

Here's a sample GET request with reqwest:

 reqwest({
 url: url,
 method: 'GET',
 type: 'json',
 success: onSuccess
 });

Now if you want something even more lightweight, I'd try microAjax at a mere 0.4kb: https://code.google.com/p/microajax/

This is all the code right here:

 function microAjax(B,A){this.bindFunction=function(E,D){return function(){return E.apply(D,[D])}};this.stateChange=function(D){if(this.request.readyState==4){this.callbackFunction(this.request.responseText)}};this.getRequest=function(){if(window.ActiveXObject){return new ActiveXObject("Microsoft.XMLHTTP")}else{if(window.XMLHttpRequest){return new XMLHttpRequest()}}return false};this.postBody=(arguments[2]||"");this.callbackFunction=A;this.url=B;this.request=this.getRequest();if(this.request){var C=this.request;C.onreadystatechange=this.bindFunction(this.stateChange,this);if(this.postBody!==""){C.open("POST",B,true);C.setRequestHeader("X-Requested-With","XMLHttpRequest");C.setRequestHeader("Content-type","application/x-www-form-urlencoded");C.setRequestHeader("Connection","close")}else{C.open("GET",B,true)}C.send(this.postBody)}};

And here's a sample call:

 microAjax(url, onSuccess);

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I think there is a problem with microAjax, when you call it twice (because of the numerous "this", I think, there must be a collision). I don't know if calling two "new microAjax" is a good workaround, is it?

Jill-Jênn Vie
– Jill-Jênn Vie

2015年05月24日 13:47:28 +00:00
Commented May 24, 2015 at 13:47

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How can I make an AJAX call without jQuery?

Answer*