Add support for string formatting

[rossant]

Example:

print("Hello {0:s}".format("world"))

[atsepkov]

I have no short-term plans to implement this, since there are a couple solutions for this that already do a better job than I would. One is sprintf library, which works very similar to Python's "foo %s" % "bar" type replacement:

http://www.diveintojavascript.com/projects/javascript-sprintf

Another solution (that works very similar to what you request) is based on MsAjax string and documented in this thread:

http://stackoverflow.com/questions/2534803/string-format-in-javascript