Javascript regex match filename with extension

Question

Hello i need to match filnames with extensions.

Problem is that paths could be both unix and windows, so seperated by / or \ also unix allows . in filenames, so t.est.txt also should be matched.

My code :

var regex = new RegExp('[\\/]?([/\w+.]+/\w+)/\s*$');
var value = this.attachment.fileInput.dom.value;
console.log(value.match(regex));
console.log(regex.exec(value));

this regex works fine in rubular. But for some reason ie, chrome and firefox does not match any string and returns null.

Answer 1

You could just grab whatever's at the end following the last \ or /, such as:

var file = str.match(/[^\\/]+$/)[0];

(Remember files don't always need extensions)

Though if you really want to force extension matching:

var file = str.match(/[^\\/]+\.[^\\/]+$/)[0];