Backslashes - Regular Expression - Javascript

Question

I wanted to build a JS function concatting a list of arguments to a valid path (since I could not be sure whether a part of the path is given with or without slashes)

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Answer 1

Try this... it's a little easier to follow with the [character classes]. to match a single \ with a javascript string you need \\\\, which may be what's going on.

new Regexp('^[\\\\/]|[\\\\/]$')

You can also try the /^[\\\/]|[\\\/]$/g notation.

s = 'c:\\folder\\'
console.log(s.replace(/^[\\\/]|[\\\/]$/g, ''))