JS: writing a function that iterates through a list of strings and returns the top 10 most frequent strings in the list

I am trying to write a function that iterates through a list of strings and returns the top 10 most frequent strings in the list. I am trying to come up with multiple solutions to this question

Here is my first solution

const list = [
    "this",
    "is",
    "a",
    "test",
    "which",
    "word",
    "wins",
    "top",
    "i",
    "don't",
    "know",
    "off",
    "hand",
    "do",
    "you",
    "this",
    "a",
    "a",
    "this",
    "test",
    "a",
    "a",
    "do",
    "hand",
    "hand",
    "a",
    "whatever",
    "what",
    "do",
    "do"
  ];

function fn1(strArr) {
    const map = new Map()
    for(const str of strArr) {
        if(map.has(str)) {
            map.set(str, map.get(str) + 1)
        } else {
            map.set(str, 1)
        }
    }
    const sortedMap =[...map.entries()].sort(([_,a], [__,b]) => a < b ? 1 : -1)
    return sortedMap.slice(0 , 10).map(([str]) => str)
}

But I cannot seem to find any other solutions to this question. Can anyone suggest an alternative suggestion?

Also, one thing to note that is the list can be really large, maybe contain 1 million strings. So we need to try to minimize the runtime complexity

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