* Printing a hash table
@ 2014-12-18 15:45 Joost Kremers
[not found] ` <mailman.16411.1418918006.1147.help-gnu-emacs@gnu.org>
0 siblings, 1 reply; 3+ messages in thread
From: Joost Kremers @ 2014-12-18 15:45 UTC (permalink / raw)
To: help-gnu-emacs
EN:SiS(9)
Hi,
When I have a larg(ish) hash table, displaying this table (e.g., in an
ielm buffer by entering the name that points to it), can take some time.
Usually, when I do this, I'm not really interested in the values stored
in the table, just in the fact whether the variable whose value I'm
checking is actually pointing to a hash table.
Is there a way to tell Emacs to not print the data of a hash table?
TIA
Joost
--
Joost Kremers joostkremers@fastmail.fm
Selbst in die Unterwelt dringt durch Spalten Licht
^ permalink raw reply [flat|nested] 3+ messages in thread
* RE: Printing a hash table
[not found] <<slrnm95tki.h18.joost.m.kremers@j.kremers4.news.arnhem.chello.nl>
@ 2014-12-18 15:53 ` Drew Adams
0 siblings, 0 replies; 3+ messages in thread
From: Drew Adams @ 2014-12-18 15:53 UTC (permalink / raw)
To: Joost Kremers, help-gnu-emacs
> I'm not really interested in the values stored in the table, just
> in the fact whether the variable whose value I'm checking is
> actually pointing to a hash table.
Use predicate `hash-table-p'.
M-: (hash-table-p foo-variable) RET
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Printing a hash table
[not found] ` <mailman.16411.1418918006.1147.help-gnu-emacs@gnu.org>
@ 2014-12-18 19:27 ` Joost Kremers
0 siblings, 0 replies; 3+ messages in thread
From: Joost Kremers @ 2014-12-18 19:27 UTC (permalink / raw)
To: help-gnu-emacs
Drew Adams wrote:
>> I'm not really interested in the values stored in the table, just
>> in the fact whether the variable whose value I'm checking is
>> actually pointing to a hash table.
>
> Use predicate `hash-table-p'.
>
> M-: (hash-table-p foo-variable) RET
Mmm, I hadn't thought of that... :-)
--
Joost Kremers joostkremers@fastmail.fm
Selbst in die Unterwelt dringt durch Spalten Licht
EN:SiS(9)
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2014-12-18 15:45 Printing a hash table Joost Kremers
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2014-12-18 19:27 ` Joost Kremers
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2014-12-18 15:53 ` Drew Adams
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