Checking if a js file exists?

Question

JavaScript

I check the existence of the file in the following way:

$.ajax("http://yoursite.ru/your/cool/path/your_cool_file.mp3", {
    success: function() {
        // Run your mp3 player
    },
    error: function() {
        alert("An error occured. We can not play the audio");
    }
});

But the question arose, would this slow down the script or increase the load on the server? that is, does the client receive redundant information with this request? 'Cause I just want the headers.

Answer 1

$.ajax("http://yoursite.ru/your/cool/path/your_cool_file.mp3", {
    success: function() {
        // Run your mp3 player
    },
    error: function() {
        alert("An error occured. We can not play the audio");
    },
    method: "HEAD"
});