In brief
When converting, the direct connection to the keys in the received array is lost.
Useful to know
Object.values() returns the values of its own enumerable properties with string keys. For example, Object.values({a: 2, b: 5}) gives [2, 5]. [1]
This can help add up known number fields. Before the calculation, check the types: value "5" is text and can change the behavior of +. If field names are still needed, select a representation with key-value pairs. The resulting list does not itself keep a separate label for the origin of each number.
Sources
For further detail and to check the information: