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fileSize property (document, img)

Browser support:
Returns the size of the file.
The fileCreatedDate, fileModifiedDate, lastModified, fileUpdatedDate and fileSize properties provide information about a file in JavaScript. These properties are only supported by Internet Explorer, except for the lastModified property that, which is also supported by Firefox, Opera, Google Chrome and Safari.


You can find the related objects in the Supported by objects section below.
This property is read-only.

Possible values:

Integer that represents the size of the file in bytes.
Default: this property has no default value.

Example HTML code 1:

This example illustrates the use of the fileSize property:
    <script type="text/javascript">
        function GetFileInfo () {
            var message = "";
            if (document.fileCreatedDate) {
                message += "The document file was created at: <b>" + document.fileCreatedDate + "</b><br />";
            if (document.fileModifiedDate) {
                message += "The document file was last modified at: <b>" + document.fileModifiedDate + "</b><br />";
            if (document.lastModified) {
                message += "The document file was last modified at: <b>" + document.lastModified + "</b><br />";
            if (document.fileUpdatedDate) {
                message += "The document file was last updated at: <b>" + document.fileUpdatedDate + "</b><br />";
            if (document.fileSize) {
                message += "The size of the document file is: <b>" + document.fileSize + " bytes</b><br />";
            var info = document.getElementById ("info");
            info.innerHTML = message;
<body onload="GetFileInfo ();">
    <div id="info" style="width:500px; overflow:auto; background-color:#e0d0d0;"></div>
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