Nodejs Utililty Methods Number Compare

Number.prototype.compareTo = function(num) {
   if (typeof num != "number") return false; 
   if (num < this) return 1;
   else if (num > this) return -1;
   else return 0;
};

Number.prototype.compareTo = function (other) {
    return this.valueOf() == other;
};

Number.prototype.compareTo = function (other: number) {
   return this.valueOf() == other;

Number.prototype.compare_number = function (generated_number, input_number) {
    var number_of_A = 0;
    var number_of_B = 0;
    for (var i=0; i<4; i++){
        for (var j=0; j<4; j++){
            if ((generated_number[i] == input_number[j]) && i==j){
                number_of_A += 1;
            else if ((generated_number[i] == input_number[j]) && i!=j){
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