ruby - "-" == "-" returns false.. Why? -

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enter image description here

anybody know whats going on here? why "-" not found? try in irb.

if 

string = "(( :h – :2b – :3b – :hr )+( 2 * :2b )+( 3 * :3b )+( 4 * :hr ))/ :ab "  string.split(" ")[2] == "-"

it returns false well.

the character string.split(" ")[2] –. may normal hyphen, in fact different character normal hyphen: -.

you can see getting ordinal value of each:

string.split(" ")[2].ord # => 8211 "-".ord # => 45

therefore, should checking equality unicode character \u2013:

string.split(" ")[2] == "\u2013" # => true

or can replace occurrences of \u2013 -:

string.gsub!("\u2013", "-") string.split(" ")[2] == "-" # => true

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