Code test

gistfile1.txt

var returnEvensOnly = function(array,counter,result) {
    if (counter===undefined){counter=0;}
    if (result===undefined){result=[];}
    if (counter <= array.length) {
       if(array[counter]%2===0){result.push(array[counter]);}
        return returnEvensOnly(array,counter+1,result);
    } else {
        return result;
    }
};
returnEvensOnly(array,counter,result);


If I wanted to perform all operations on and return the same exact array I would do the following instead:


var returnEvensOnly = function(array, counter) {
    if (counter===undefined){counter=0;}
    if (counter <array.length) {
        if(array[counter]%2===0){ return returnEvensOnly(array,counter+1);} //If i get a remainder
        else{
            array.splice(counter,1); 
            return returnEvensOnly(array,counter);
        }
    } else {
        return array;
    }
};