Javascript Functions Back Slash!

[adam_a_knight]

Can someone tell me how do i find the last occurrence of the "\"
character in a file name.

retVal = "\data\sheet\file.gif"
lastPos = retVal.lastIndexOf("\",0);
This code keeps erroring !!!

Thanks..

[Vincent van Beveren]

> Can someone tell me how do i find the last occurrence of the "\"

character in a file name.

retVal = "\data\sheet\file.gif"
lastPos = retVal.lastIndexOf("\",0);
This code keeps erroring !!!

the lastPos is correct. The problem is in the first statement.

The \ is the symbol for escaping. Supose you want to put
"starbuck's" in a string using single quotes to surround it.
This is impossible to do:

s = 'starbuck's'

Will error, and you can see why. So you have the escape the character.

s = 'starbuck\'s'

Escaping only works to create certain special characters for exampple:

\" = "
\' = '
\n = enter
\t = tab
\\ = \

You should be able to figure out the rest.

Good luck,
Vincent

[Robert]

ad***********@hotmail.com wrote in message news:<84**************************@posting.google. com>...

Can someone tell me how do i find the last occurrence of the "\"
character in a file name.

retVal = "\data\sheet\file.gif"
lastPos = retVal.lastIndexOf("\",0);
This code keeps erroring !!!

Thanks..

While I do not know where you got the file specification from, you are
using the IE proprietary format for the file name.

The internet format would be:

retVal = "/data/sheet/file.gif"

This format is supported by all web browsers.

Robert

[Thomas 'PointedEars' Lahn]

ad***********@hotmail.com wrote:

Can someone tell me how do i find the last occurrence of the "\"
character in a file name.

retVal = "\data\sheet\file.gif"
lastPos = retVal.lastIndexOf("\",0);
This code keeps erroring !!!

Your Exclamation Mark key is borken. [psf 2.3]

Firstly, "Does not work" is a useless error description. [psf 4.11]
Read the FAQ.

Secondly, "\" is the escape character in string literals, use

var retVal = "\\data\\sheet\\file.gif";
var lastPos = retVal.lastIndexOf("\\");

instead. However, you should thirdly pay attention to Robert's comment.
PointedEars

[Evertjan.]

Thomas 'PointedEars' Lahn wrote on 26 jun 2004 in comp.lang.javascript:

Your Exclamation Mark key is borken. [psf 2.3]

Town in Germany, should be with a capital B?

--
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)