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| author | danbst <abcz2.uprola@gmail.com> | 2019-08-05 14:34:51 +0300 |
|---|---|---|
| committer | danbst <abcz2.uprola@gmail.com> | 2019-08-05 14:34:51 +0300 |
| commit | 29ba0a0adff274f5ea0d93246be3f2957d234a7b (patch) | |
| tree | e53b8682e4ad2804086a5c7a02ded21412e3685c | |
| parent | 210c57883e659f5a1d4f5c29ed5970df93ee2940 (diff) | |
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add release notes
| -rw-r--r-- | nixos/doc/manual/release-notes/rl-1909.xml | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/nixos/doc/manual/release-notes/rl-1909.xml b/nixos/doc/manual/release-notes/rl-1909.xml index 6f049005ab6..398234cf025 100644 --- a/nixos/doc/manual/release-notes/rl-1909.xml +++ b/nixos/doc/manual/release-notes/rl-1909.xml @@ -387,6 +387,18 @@ installer after creating <literal>/var/lib/nextcloud</literal>. </para> </listitem> + <listitem> + <para> + There exists now <literal>lib.forEach</literal>, which is like <literal>map</literal>, but with + arguments flipped. When mapping function body spans many lines (or has nested + <literal>map</literal>s), it is often hard to follow which list is modified. + </para> + <para> + Previous solution to this problem was either to use <literal>lib.flip map</literal> + idiom or extract that anonymous mapping function to a named one. Both can still be used + but <literal>lib.forEach</literal> is preferred over <literal>lib.flip map</literal>. + </para> + </listitem> </itemizedlist> </section> </section> |