function insertDashes(arr) {
    // write code here
    const arrSplit = arr.split(``);
        // console.log(arrSplit);
    const arrAnswer = []; 
    let answer;   
        
    for(let i = 0; i < arrSplit.length; i++) {
        if(arrSplit != ' ') {
            arrAnswer.push(arrSplit[i]);      
        } 
        if(arrSplit[i + 1] !== ' ' &&
           arrSplit[i - 0] !== ' ' 
        ) {
            arrAnswer.push('-');
        }
    }  
    arrAnswer.pop();
        // console.log(arrAnswer); 
    answer = arrAnswer.join('');
        // console.log(answer); 
    return answer;    
}



/**
* Test Suite 
*/
describe('insertDashes()', () => {
    it('insert dashes in between chars', () => {
        // arrange
        const value = "aba caba";
        
        // act
        const result = insertDashes(value);

        // log
        console.log("result: ", result);
        
        // assert
        expect(result).toBe("a-b-a c-a-b-a");
    });
});