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edited Oct 29, 2020 at 3:37You need to make use of 2 concepts: mongodb's positional operator and simply using the numeric index for the entry you want to update.
The positional operator allows you to use a condition like this:
{"heroes.nickname": "test"}and then reference the found array entry like so:
{"heroes.$ // <- the dollar represents the first matching array key indexAs you want to update the 2nd array entry in "items", and array keys are 0 indexed - that's the key 1.
So:
> db.denis.insert({_id:"43434", heroes : [{ nickname : "test", items : ["", "", ""] }, { nickname : "test2", items : ["", "", ""] }]});Content Under CC-BY-SA license Array Update Operators - MongoDB Manual v7.0
WEBUpdate Operator Modifiers. Modifies the $push and $addToSet operators to append multiple items for array updates. Modifies the $push operator to specify the position in the array to add elements. Modifies the $push operator to limit the size of updated arrays.
See results only from mongodb.com$ (update)
To update all elements in an array, see the all positional operator $[] instead. To …
MongoDB Manual
Update Operators. Acts as a placeholder to update the first element that matches …
Update field in exact element array in MongoDB - Stack Overflow
WEBYou need to make use of 2 concepts: mongodb's positional operator and simply using the numeric index for the entry you want to update. The positional operator allows you to …
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MongoDB: How do I update a single subelement in an array, …
WEBJul 7, 2012 · To update all elements that are greater than or equal to 100 in the grades array, use the filtered positional operator $[] with the arrayFilters option: …
Updating a Property of an Object in an Array within a MongoDB …
WEBApr 26, 2024 · Updating the property of an object within such an array can be a frequent requirement in many applications. This article will explore various methods to achieve …
$ (update) - MongoDB Manual v7.0
WEBTo update all elements in an array, see the all positional operator $[] instead. To update all elements that match an array filter condition or conditions, see the filtered positional …
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