function differentSymbolsNaive(str) {
    //  write code here.
    let uniqueChars = {};
    let uniqueCount = 0;
    let chars = str.split('');
    //Go through each character in the array
    chars.forEach(function (char){
        
        if(uniqueChars[char]){//If it already exists add one to the count, this way we could also answer the question how many of any character
            uniqueChars[char] ++;
        }else {// if the character does not exist already, add it to the object and add to our unique counter we will use to answer this question since we can't easily get a size or length from the object we are using to store the unique characters themselves, there is probably a more efficient data structure I could use to get that count for more easily...
            uniqueChars[char] = 1;
            uniqueCount ++;
        }
    })
    return uniqueCount;
    
}



/**
* Test Suite 
*/
describe('differentSymbolsNaive()', () => {
    it('returns count of unique characters', () => {
        // arrange
        const str = 'cabca';
        
        // act
        const result = differentSymbolsNaive(str);

        // log
        console.log("result: ", result);
        
        // assert
        expect(result).toBe(3);
    });
});