ruby ARGV # can’t modify frozen string

appears that by default the command line parameters [ARGV] are frozen strings. go figure.

You can still do funky things with ARGV, though.

ARGV.map!{|name| name.dup} # now they’re not frozen

ARGV.shift

etc

etc.

One thought on “ruby ARGV # can’t modify frozen string”

rogerdpack on December 23, 2009 at 5:59 pm said:

# IO error — rubygems/requirement

meant “upgrade your jruby past 1.4″