From: Joost Kremers <joostkremers@fastmail.fm>
To: help-gnu-emacs@gnu.org
Subject: Re: Is there equivalent internal function for this list-has-elements?
Date: Sun, 18 Oct 2020 23:21:05 +0200 [thread overview]
Message-ID: <87k0vnw7r2.fsf@fastmail.fm> (raw)
In-Reply-To: <20201018205850.GA13219@tuxteam.de>
On Sun, Oct 18 2020, tomas@tuxteam.de wrote:
> If I understand this one correctly, it can be expressed as:
>
> (seq-filter
> (lambda (elt) (string-match needle elt))
> haystack)
Small nit-pick, but it's generally better to use `string-match-p` if you're just
testing whether a string matches a regexp. `string-match` modifies the match
data, `string-match-p` doesn't.
--
Joost Kremers
Life has its moments
next prev parent reply other threads:[~2020-10-18 21:21 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-18 19:37 Is there equivalent internal function for this list-has-elements? Jean Louis
2020-10-18 20:43 ` Stefan Monnier
2020-10-19 7:15 ` tomas
[not found] ` <20201019180655.GL19325@protected.rcdrun.com>
[not found] ` <jwvpn5ef5dx.fsf-monnier+emacs@gnu.org>
2020-10-19 20:15 ` Jean Louis
2020-10-18 20:58 ` tomas
2020-10-18 21:21 ` Joost Kremers [this message]
2020-10-19 6:57 ` tomas
2020-10-19 18:08 ` Jean Louis
2020-10-19 18:23 ` Jean Louis
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