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Add note about lazy cursors.

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Dan Holmsand 2016-06-07 16:23:13 +02:00
parent 1280f58201
commit 30c9402fe9
1 changed files with 3 additions and 1 deletions
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src/reagent/core.cljs
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@ -300,7 +300,9 @@ value) when the cursor is modified.
Given that set-get function, (and that state is a Reagent atom, or Given that set-get function, (and that state is a Reagent atom, or
another cursor) these cursors are equivalent: another cursor) these cursors are equivalent:
(cursor state [:foo]) and (cursor set-get [:foo]). (cursor state [:foo]) and (cursor set-get [:foo]).
"
Note that a cursor is lazy: its value will not change until it is
used. This may be noticed with add-watch."
([src path] ([src path]
(ratom/cursor src path))) (ratom/cursor src path)))