Question

7

Escaping backslash in string - javascript

rated 0 times [ 14] [ 7] / answers: 1 / hits: 153428 / 13 Years ago, fri, december 23, 2011, 12:00:00

I need to show the name of the currently selected file (in <input type=file> element).

Everything is fine, the only problem is I'm getting this kind of string C:fakepath
typog_rules.pdf (browset automatically puts this as value for the input element).

When I try to split the string by '' or '\' it fails because of unescaped slashes. Attempts to match/replace slashes fails too. Is there a way around this? I need this to work at least in Opera and IE (because in other browsers I can use FileReader)

E.G. I'm getting C:fakepathtypog_rules.pdf as input and want to get typog_rules.pdf as output.

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answered 13 Years ago louiemarvinm · Accepted Answer

For security reasons, it is not possible to get the real, full path of a file, referred through an <input type=file /> element.

This question already mentions, and links to other Stack Overflow questions regarding this topic.

^{Previous answer, kept as a reference for future visitors who reach this page through the title, tags and question.}

The backslash has to be escaped.

string = string.split(\);

In JavaScript, the backslash is used to escape special characters, such as newlines (n). If you want to use a literal backslash, a double backslash has to be used.

So, if you want to match two backslashes, four backslashes has to be used. For example,alert(\\) will show a dialog containing two backslashes.