I have a json structure in power automate like this:

[
    {
        "title": "doc1.pdf",
        "URL": "someURL"
    },
    {
        "title": "doc1.pdf",
        "URL": "someURL"
    },
    {
        "title": "doc2.doc",
        "URL": "someURL"
    },
    {
        "title": "doc1.pdf",
        "URL": "someURL"
    },
    {
        "title": "doc2.doc",
        "URL": "someURL"
    }
]

I would like to add an element to each dictionary to record the ‘count’ of the document, so that it ends up like this:

[
    {
        "title": "doc1.pdf",
        "URL": "someURL",
        "count": 1
    },
    {
        "title": "doc1.pdf",
        "URL": "someURL",
        "count": 2
    },
    {
        "title": "doc2.doc",
        "URL": "someURL",
        "count": 1
    },
    {
        "title": "doc1.pdf",
        "URL": "someURL",
        "count": 3
    },
    {
        "title": "doc2.doc",
        "URL": "someURL",
        "count": 2
    }
]

I know this is possible by creating a unique list of ‘title’ and then iterating over the array for each title and checking for text match, and using a counter variable.

Within that though, how do you actually assign this to a new element in each dictionary in the array?

Thanks in advance for input and for reading.