IO.try_convert(obj) â io or nil
Class Public methods
Try to convert obj into an IO, using #to_io method. Returns converted IO or nil if obj cannot be converted for any reason.
1 2 3 4 5 6 7 | IO .try_convert( STDOUT ) #=> STDOUT IO .try_convert( "STDOUT" ) #=> nil require 'zlib' f = open( "/tmp/zz.gz" ) #=> #<File:/tmp/zz.gz> z = Zlib::GzipReader.open(f) #=> #<Zlib::GzipReader:0x81d8744> IO .try_convert(z) #=> #<File:/tmp/zz.gz> |
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