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Code to use fso to determine whether a file exists under JavaScript_javascript skills

WBOY
Release： 2016-05-16 18:14:00
Original
1183 people have browsed it
Copy code The code is as follows:

function ReportFileStatus(filespec)
{
var fso, s = filespec;
fso = new ActiveXObject("Scripting.FileSystemObject");
if (fso.FileExists(filespec))
s = " exists.";
else
s = " doesn't exist.";
return(s);
}

Using the client's FileSystemObject object
Example:
Copy code The code is as follows:

function check()
{
var fso;
fso = new ActiveXObject(" Scripting.FileSystemObject");
if( fso.FileExists("c:\testfile.txt"))
{
alert("Exists!");
}
else
{
alert("not Exists!");
}
}　
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