Course of Raku / Essentials / Data type conversion / Introspection with WHAT
Quiz: What does WHAT return?
Select the correct result of calling the WHAT method.
| (Str) | 'String'.WHAT returns (: (Int), (Rat), (Num), (Str) :) |
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| (Int) | 500.WHAT returns (: (Int), (Rat), (Num), (Str) :) |
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| (Rat) | 3.14.WHAT returns (: (Int), (Rat), (Num), (Str) :) |
Two dots should not confuse you. |
| (Num) | pi.WHAT returns (: (Int), (Rat), (Num), (Str) :) |
pi is Num by definition. |
| (Int) | (-10).WHAT returns (: (Int), (Rat), (Num), (Str) :) |
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| (Int) | (+10).WHAT returns (: (Int), (Rat), (Num), (Str) :) |
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| (Rat) | (-1/2).WHAT returns (: (Int), (Rat), (Num), (Str) :) |
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| (Int) | ('3' + '4').WHAT returns (: (Int), (Rat), (Num), (Str) :) |
'3' + '4' does numeric addition, so the result is integer. |
| (Str) | ('3' ~ '4').WHAT returns (: (Int), (Rat), (Num), (Str) :) |
String concatenation gives a string. |
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