function insertDashes(str) {
    let arr = str.split(" ");
    let result = [];

    for (let i = 0; i < arr.length; i++) {
        result.push(arr[i].split('').join('-'));        
    }
        
    return result.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");
    });
});