Is there a built-in javascript function similar to os.path.join?

Question

Is there a built-in javascript (client-side) function that functions similarly to Node's path.join? I know I can join strings in the following manner:

['a', 'b'].join('/') 

The problem is that if the strings already contain a leading/trailing "/", then they will not be joined correctly, e.g.:

['a/','b'].join('/') 

Answer 1

Use the path module. path.join is exactly what you're looking for. From the docs:

path.join([path1][, path2][, ...])# Join all arguments together and normalize the resulting path.

Arguments must be strings. In v0.8, non-string arguments were silently ignored. In v0.10 and up, an exception is thrown.

Example:

path.join('/foo', 'bar', 'baz/asdf', 'quux', '..') // returns '/foo/bar/baz/asdf'  path.join('foo', {}, 'bar') // throws exception TypeError: Arguments to path.join must be strings 

Edit:

I assumed here that you're using server-side Javascript like node.js. If you want to use it in the browser, you can use path-browserify.