Flowdock
to_f() public

Returns the result of interpreting leading characters in str as a floating point number. Extraneous characters past the end of a valid number are ignored. If there is not a valid number at the start of str, 0.0 is returned. This method never raises an exception.

   "123.45e1".to_f        #=> 1234.5
   "45.67 degrees".to_f   #=> 45.67
   "thx1138".to_f         #=> 0.0
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