How to limit an array size in MongoDB? -


is there way can limit number of elements can added mongodb array? have tables collection attendees array should contain 10 elements seats).

thank you!

you can use $slice modifier $push when update document:

$push: {"field": $each: ["val1", "val2"], $slice: -10}

this cause field consist of last 10 elements (giving "rolling window" of values pushed field).


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