blakeembrey/code-problems — pull request #26 by riga (2013-06-15 16:49:19+00:00)
Title: Add string-format.

e.g.:
format('Hello {0} {1}', 'Mr.', 'X')
// => 'Hello Mr. X'
format('{1}_{0}', '{1}', '{0}')
// => '{0}_{1}'