JSFiddle - React, Tailwind, and code Playground

HTML

<div id="log"></div>

JavaScript

// Implement checkAndAddHighScore() where you have a list that keeps the top 5 high scores

var highScores = [];

function checkAndAddHighScore(score) {
    // Check if `score` is a high score
    // If it is, store it in the `highScore` list
    // Allow no more than 5 high scores in the list at a time
    if (highScores.length < 5) {
        highScores.push(score); //not sure how to put score in the correct position
        highScores.sort();
    }
    else {
        rem = getMin(highScores);
        if (score > rem)
            highScores.remove(rem);
            highScores.push(score);
            highScores.sort();
    }
    log(highScores);
}

function getMin(scores) {
    var min = scores[0];
    for (var i = 1; i < scores.length; i++) {
        if (scores[i] < min)
            min = scores[i]
    }
    return min;
}




/*
score: 100

highScores = [50, 40, 30, 20, 10]

after, highScores = [100, 50, 40, 30, 20]


*/
         
Array.prototype.remove = function(item) {
  var i = this.indexOf(item);
  if (i === undefined || i < 0) {
    return undefined;
  }
  return this.splice(i, 1);
};

function log(message) {
    var p = document.createElement('p');
    var d = document.getElementById('log');
    p.textContent = message;
    d.insertBefore(p, d.firstChild);
}


log(checkAndAddHighScore(100));
log(checkAndAddHighScore(100));
log(checkAndAddHighScore(100));
log(checkAndAddHighScore(100));
log(checkAndAddHighScore(100));
log(checkAndAddHighScore(200));
log(checkAndAddHighScore(300));
log(checkAndAddHighScore(400));