function insertDashes(arr) {
    // write code here
    console.log(arr.split('').join('-'));
    
    const returnArray = [];
    const splitArray = arr.split('');
        console.log(splitArray);
    for(let i = 0; i < splitArray.length; i++) {
        
        if(splitArray[i+1] == " ") {
            // console.log(`${splitArray[i]}`);
            returnArray.push(`${splitArray[i]}`);
        } else if (splitArray[i] == " "){
            // console.log(`${splitArray[i]}blank`);
            returnArray.push(`${splitArray[i]}`);
        } else if(i === splitArray.length -1){
            // console.log(`${splitArray[i]}`);
            returnArray.push(`${splitArray[i]}`);
        } else {
            // console.log(`${splitArray[i]}-`);
            returnArray.push(`${splitArray[i]}-`);
        }
    }
    console.log(returnArray.join(''));
    return returnArray.join('');
}

/**
* 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");
    });
});