Sort array and remove duplicates

var unique = function(array) {

    function sortArray(myArr) {
        for (var i = 0; i < myArr.length; i++) {
            for (var n = 0; n < myArr.length; n++) {
                if (n === 0) {
                    continue;
                } else {
                    if (myArr[n] < myArr[n - 1]) {
                        var temp = myArr[n];
                        myArr[n] = myArr[n - 1];
                        myArr[n - 1] = temp;
                    }
                }
            }
        }
        return myArr;
    }

    function removeDuplicates(myArr) {
        for (var i = 0; i < myArr.length; i++) {
            var num = myArr[i];
            if (myArr[i + 1] === num) {
                myArr.splice(i, 1);
                i--;
            }
        }
        return myArr;
    }
    
    var arr = [];
    for (var i = 0; i < array.length; i++) {
        arr.push(array[i]);
    }
    
    return removeDuplicates(sortArray(arr));
};