Software⏱️ 2 min read📅 2026-06-03

How to Fix: Mongoose, update values in array of objects

Learn how to fix: Mongoose, update values in array of objects.

Quick Answer: Try checking your system settings or restarting.

Mongoose does not support updating values in an array of objects directly. The issue lies in the use of `$` with `items.$` which is a MongoDB operator, not Mongoose.

🛑 Root Causes of the Error

  • The problem arises from using `$` operator with Mongoose, which is not designed to work with arrays.

✅ Best Solutions to Fix It

Method 1: Using the `updateMany` Method

  1. Step 1: Use the `$` operator with the array index, not the object.

Method 2: Using a Loop to Update Individual Objects

  1. Step 1: Iterate over the array and update each object individually using `updateOne` method.

🎯 Final Words

To successfully update values in an array of objects, use the `$` operator correctly or iterate over the array using Mongoose's `updateMany` and `updateOne` methods.

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