javascript - How can I check a column for NULL values in node-orm -


i'm using orm package in node.js , i'm trying query database using find() on 1 of models. however, can't figure out how check column null values using find(). there way this?

if sent_at field not there when not set then:

db.emails.find({sent_at: {$exists: false}})

if there , null, or not there @ all:

db.emails.find({sent_at: null})

reference: query nul fields

note: since didn't mention database name nor orm used assuming database mongodb.

hope helps.


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