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Remove duplicates from an array using lodash _.uniqBy with a property path
Details
Remove duplicate values from an array using a property path.
Highlights:
_.uniqByid, meta.key)Example:
[{"id": 1}, {"id": 1}, {"id": 2}]id[{"id": 1}, {"id": 2}]Execution
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Tool usage guide
Uniq By is a powerful data processing utility that allows you to efficiently remove duplicate objects from a JSON array based on a specific property path using the reliable lodash _.uniqBy method.
Background
I have a list of users exported from a database, but some users appear multiple times due to system sync errors.
Problem
I need to remove duplicate user objects based on their unique 'email' field.
How to use
Paste the user array into the input and enter 'email' in the Property Path field.
path: 'email'Outcome
A clean list where each email address appears exactly once.
Background
An API endpoint is returning a list of transactions, but some transactions are duplicated with the same 'transaction_id' inside a 'data' object.
Problem
I need to filter the array to keep only unique transactions based on the nested ID.
How to use
Paste the JSON response and use 'data.transaction_id' as the property path.
path: 'data.transaction_id'It tells the tool which specific key or nested path to look at when determining if two objects are duplicates.
Yes, you can use dot notation (e.g., 'meta.id') to target properties nested within objects.
If no path is provided, the tool will treat the entire object as the value for comparison.
Yes, the comparison follows standard JavaScript equality rules, meaning 'ID' and 'id' are treated as different values.
No, the tool processes your input and generates a new, unique output; your original data remains unchanged.
Outcome
A refined array containing only unique transaction records.