function avoidObstacles(nums) {
    //  write code here.
    
    let z = nums.sort() //sort the arr
    let x = 2 // 1 wont work
    while (true) {
        let y = 0
        if (z.every((y) => y % x != 0)) {
            return x
        }
        x += 1
    }
}   

 



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