function adjacentElementsProduct(nums) {
    let result = 0;
    
    for (i1 = 0; i1 < nums.length-1; ++i1) {
        const product=nums[i1]*nums[i1+1];
                 
        if (product > result) {
            result = product;
        }

    }
    
    return result;
}



/**
* Test Suite 
*/
describe('adjacentElementsProduct()', () => {
    it('returns largest product of adjacent values', () => {
        const nums = [3, 6, -2, -5, 7, 3];
        const result = adjacentElementsProduct(nums);
        console.log("result: ", result);
        expect(result).toBe(21);
    });
});