const avoidObstacles = (nums) => {
  for (index = 1; index < Math.max(...nums); index++) {
    if (nums.every((curr) => curr % index !== 0)) {
      return index;
    }
  }
};


/**
* Test Suite 
*/
describe('avoidObstacles()', () => {
    it('returns minimal number of jumps in between numbers', () => {
        // arrange
        const nums = [5, 3, 6, 7, 9];
        
        // act
        const result = avoidObstacles(nums);

        // log
        console.log("result: ", result);
        
        // assert
        expect(result).toBe(4);
    });
});