Updating an atom with a single value
Posted
by mikera
on Stack Overflow
See other posts from Stack Overflow
or by mikera
Published on 2010-06-17T23:21:35Z
Indexed on
2010/06/17
23:33 UTC
Read the original article
Hit count: 218
I have a number of atoms in my code where a common requirement is to update them to a new value, regardless of the current value.
I therefore find myself writing something like this:
(swap! atom-name (fn [_] (identity new-value)))
This works but seems pretty ugly and presumably incurs a performance penalty for constructing the anonymous closure.
Is there a better way?
© Stack Overflow or respective owner
