Null object: Difference between revisions
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→{{header|R}}: Added REBOL example. |
m →{{header|REBOL}}: Bit of a rephrase... |
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<lang REBOL>x: none |
<lang REBOL>x: none |
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print either none? x [" |
print ["x" either none? x ["is"]["isn't"] "none."]</lang> |
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Output: |
Output: |
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