Answers for "mongodb empty an array field"

11

mongodb check for array not empty query

collection.find({ arrayElementName: { $exists: true, $not: {$size: 0} } })
Posted by: Guest on May-03-2020
4

mongodb filter empty array

db.collection.find({arrayElementName : {$exists:true, $size:0}})
Posted by: Guest on May-07-2020
1

mongodb empty an array field

db.collection.update({}, { $set : {'myArray': [] }} , {multi:true} )
Posted by: Guest on December-16-2020

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