Given an array of JSON objects as:
arr=[{"id": "abc", "value": "123"}, {"id": "xyz", "value": "456"}]
I would like to output a single JSON object like:
new_arr={"abc":123,"xyz":456}
Currently I can extract the elements like arr[0]['id'] but I am wondering what’s the one-liner or better way to form the output.
>Solution :
A one-liner to extract the ids and values would be like this:
new_arr = {item['id']: int(item['value']) for item in arr}
as the arr object contains the value as a str you need to convert it to an int(). The rest of the one line similar to a list comprehension with dict as the base element to add to, thereby being a dict comprehension. Though this assumes that all dicts have a id and value combination (which is unknown from your data and am assuming that they always have an id and value)