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=={{header|Babel}}== |
=={{header|Babel}}== |
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In this example, we place nil on the stack, then perform an if-then-else (ifte) based on the value returned by the 'nil?' operator which returns true |
In this example, we place nil on the stack, then perform an if-then-else (ifte) based on the value returned by the 'nil?' operator which returns true if top-of-stack (TOS) is nil. If TOS is nil, then we can be relieved, otherwise, the interpreter has gone absolutely haywire. The '<<' operator prints the selected string to STDOUT. |
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<lang babel>{ nil { nil? } { "Whew!\n" } { "Something is terribly wrong!\n" } ifte << }</lang> |
<lang babel>{ nil { nil? } { "Whew!\n" } { "Something is terribly wrong!\n" } ifte << }</lang> |
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