Delete duplicate objects by key

Created by: ghost

Hello! I'm using this library in Arduino.

There is a line with a dynamic number of objects: [ {"K": "Value"}, ..., {"K": "Value"} ] How to delete all objects {...}, in which the value of the key K is the same.

Example: Input: [ {"K":"10"},{"K":"12"},{"K":"15"},{"K":"12"},{"K":"15"} ] Output: [ {"K":"10"},{"K":"12"},{"K":"15"} ]

Help me please!