Pascal wrote:
> 6 s:s:'`' NB. Oh! The fill symbol hides.
> 0
Yes, symbol 0 is reserved (unsurprisingly) for the empty symbol, the symbolic
equivalent of ‘’, which is the literal equivalent of … 0 (and not just in J,
but broadly recognized as such in information theory and the discipline of
f
The symbol indexes start at 1.
s:'`a' NB. enter a symbol into a (symbol fresh) j session
`a
6 s:s:'`a' NB. the index is 1
1
0 s:3 NB. string table shows the one string.
a
6 s:s:'`' NB. Oh! The fill symbol hides.
0
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