Dear Wiki user,
You have subscribed to a wiki page or wiki category on "Couchdb Wiki" for change notification.
The "Error_messages" page has been changed by JeffOllie.
The comment on this change is: Document cause of runtime error.
http://wiki.apache.org/couchdb/Error_messages?action=diff&rev1=19&rev2=20
--------------------------------------------------
While the above guard will work in most cases, it's worth bearing !JavaScript's falsy set
of values in mind. Testing against a property with a value of `0` (zero), `''` (empty String),
`false` or `null` will return false. If this is undesired a guard of the form `if (doc.foo
!== undefined)` should do the trick.
+ This error can also be caused if a reduce function does not return a value. For example,
this reduce function will cause an error:
+
+ {{{
+ function(key, values) {
+ sum(values);
+ }
+ }}}
+
+ The function needs to return a value:
+
+ {{{
+ function(key, values) {
+ return sum(values);
+ }
+ }}}
+
<<Anchor(replicationreceivedexceptionerrorbadmatchreasonerroralreadypresent)>>
== replication received exception ({"error":"badmatch","reason":"{error,already_present}"})
==
|