gistfile1.txt

~ > irb
RUVEruby-1.9.2-p0 > {foo: "bar"}
 => {:foo=>"bar"} 
ruby-1.9.2-p0 > {foo : "bar"}
SyntaxError: (irb):2: syntax error, unexpected ':', expecting tASSOC
{foo : "bar"}
      ^
(irb):2: syntax error, unexpected '}', expecting $end
	from /Users/jack/.rvm/rubies/ruby-1.9.2-p0/bin/irb:17:in `<main>'
ruby-1.9.2-p0 > {foo: "bar"}
 => {:foo=>"bar"} 
ruby-1.9.2-p0 > {:foo: "bar"}
SyntaxError: (irb):4: syntax error, unexpected ':', expecting tASSOC
{:foo: "bar"}
      ^
(irb):4: syntax error, unexpected '}', expecting $end
	from /Users/jack/.rvm/rubies/ruby-1.9.2-p0/bin/irb:17:in `<main>'
ruby-1.9.2-p0 >