AJAX调用源自哪个目录？

Question

If I have the below code in an external JavaScript file; if the PHP file I'm calling is located in the same directory, do I have to add "../directory/filename.php"? The php script is not running, and I've posted the script in full in another thread, but I think It may be related to the "URL" in my $.ajax call.

$.ajax({
    type: 'POST',
    url: '../script/mail.php',
    data: {fname:firstName, lname:lastName, email:emailVal, comment:comments, fileName:fileName},
    success: function(){
        $('form').each(function() {
            this.reset();
        });
    }
});

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Answer 1

URLs in JavaScript programs (that are embedded in a webpage) are relative to the URL of the page.

if the PHP file I'm calling is located in the same directory, do I have to add "../directory/filename.php"?

If filename.php is in the same directory as the HTML document, then no, you can just do filename.php.

If filename.php is in the same directory as the external JS file, then … maybe, but you need to look at where the HTML document is, not the JS file.