Adding a game score to a tweet template

I’ve created a quiz type of website and I was wondering how I can change my code to add the score to the tweet

<button class="tweet-score" onclick="window.location.href="window.location.href="//twitter.com/intent/tweet?text=Check%20out%20my%20score%20on%20this!%3A&url=http%3A%2F%2Fexample-quiz.com/%2F">Share your score</button>

To display the score on the results html page, I just use #score with the CSS being as simple as:

#score{
    font-size: 100px;
    margin: 50px 0px;
}

Here is the JavaScript:

function showScore(){
    var queryString = window.location.search
    var score = new URLSearchParams(queryString).get("score")

    $('#score').html(score + '/10')
}