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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
199093 changed files with 3378972 additions and 0 deletions
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1
Task/Null-object/J/null-object-1.j Normal file
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@ -0,0 +1 @@
isUndefined=: _1 = nc@boxxopen

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Task/Null-object/J/null-object-2.j Normal file
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isUndefined 'foo'
1
foo=:9
isUndefined 'foo'
0

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Task/Null-object/J/null-object-3.j Normal file
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1 1 0 1#3 4 _ 5 NB. use bitmask to select numbers
3 4 5
I.1 1 0 1 NB. get indices for bitmask
0 1 3
0 1 3 { 3 4 _ 5 NB. use indices to select numbers
3 4 5
1 1 0 1 #inv 3 4 5 NB. use bitmask to restore original positions
3 4 0 5
1 1 0 1 #!._ inv 3 4 5 NB. specify different fill element
3 4 _ 5
3 4 5 (0 1 3}) _ _ _ _ NB. use indices to restore original positions
3 4 _ 5