scanf

scanf(fstr)

Instance Public methods

Scans the current string. If a block is given, it functions exactly like block_scanf.

arr = "123 456".scanf("%d%d")
# => [123, 456]

require 'pp'

"this 123 read that 456 other".scanf("%s%d%s") {|m| pp m}

# ["this", 123, "read"]
# ["that", 456, "other"]
# => [["this", 123, "read"], ["that", 456, "other"]]

See Scanf for details on creating a format string.

You will need to require 'scanf' to use #scanf

Links:

https://github.com/ruby/ruby/blob/c3749b6a6da86243ca16ed058216114e71c184f3/lib/scanf.rb#L715

doc_ruby_on_rails

2015-05-15 18:47:06

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