MACROMEDIA DREAMWEAVER 8-DREAMWEAVER API Especificações descarregar pdf (Página 273)

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101

The File I/O API 273

Example

The following code checks for a file called mydata.txt and displays an alert box that tells the user

whether the file exists.

var fileURL = "file:///c|/temp/mydata.txt";

if (DWfile.exists(fileURL)){

alert( fileURL + " exists!");

}else{

alert( fileURL + " does not exist.");

}

DWfile.getAttributes()

Availability

Dreamweaver 2

Description

Gets the attributes of the specified file or folder.

Arguments

fileURL

The argument is the file or folder for which you want to get attributes, which is expressed as a

file:// URL.

Returns

A string that represents the attributes of the specified file or folder. If the file or folder does not

exist, this function returns a null value. The following characters in the string represent the

attributes:

• R is read only.

• D is folder (directory).

• H is hidden.

• S is system file or folder.

Example

The following code gets the attributes of the mydata.txt file and displays an alert box if the file is

read only.

var fileURL = "file:///c|/temp/mydata.txt";

var str = DWfile.getAttributes(fileURL);

if (str && (str.indexOf("R") != -1)){

alert(fileURL + " is read only!");

}

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