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This article mainly explains "how to get the file size by javascript". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "how to get file size by javascript".

Methods: 1, using ActiveX control, syntax "var f=new ActiveXObject (" Scripting.FileSystemObject "); f.GetFile (filePath) .size"; 2, using the fileSize attribute of img.

The operating environment of this tutorial: windows7 system, javascript1.8.5 version, Dell G3 computer.

Javascript gets the file size

Method one is to use ActiveX control to realize:

Function getFileSize (filePath) {var fso = new ActiveXObject ("Scripting.FileSystemObject"); alert ("File size:" + fso.GetFile (filePath) .size);} 'else str=' image source remote:

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