[Dark19]

for(j;j<points.length;j++){
            (function(a, b) {
                ymaps.route([centroids[a]['point'], points[b]['point']]).then(function (router) {
                        distance = Math.round(router.getLength() / 1000);

                var result =
                {
                    mas: centroids[a]['object'],
                    point: points[b]['point'],
                    distance: distance
                };
                console.log(result);  });
            })(i,j)
            }

это не столь важно, но все же интересно. Почему вывод идет не по порядку как идет цикл, а в разнобой?

Object {mas: "A", point: Array[2], distance: 143}
map.js:79 Object {mas: "A", point: Array[2], distance: 98}
map.js:79 Object {mas: "A", point: Array[2], distance: 276}
map.js:79 Object {mas: "C", point: Array[2], distance: 122}
map.js:79 Object {mas: "B", point: Array[2], distance: 264}
map.js:79 Object {mas: "D", point: Array[2], distance: 237}
map.js:79 Object {mas: "C", point: Array[2], distance: 247}
map.js:79 Object {mas: "D", point: Array[2], distance: 177}
map.js:79 Object {mas: "B", point: Array[2], distance: 272}
map.js:79 Object {mas: "A", point: Array[2], distance: 410}
map.js:79 Object {mas: "C", point: Array[2], distance: 370}
map.js:79 Object {mas: "A", point: Array[2], distance: 491}
map.js:79 Object {mas: "B", point: Array[2], distance: 526}
map.js:79 Object {mas: "C", point: Array[2], distance: 285}
map.js:79 Object {mas: "C", point: Array[2], distance: 394}
map.js:79 Object {mas: "D", point: Array[2], distance: 341}
map.js:79 Object {mas: "D", point: Array[2], distance: 358}
map.js:79 Object {mas: "A", point: Array[2], distance: 620}
map.js:79 Object {mas: "D", point: Array[2], distance: 434}
map.js:79 Object {mas: "B", point: Array[2], distance: 477}
map.js:79 Object {mas: "D", point: Array[2], distance: 485}
map.js:79 Object {mas: "C", point: Array[2], distance: 320}
map.js:79 Object {mas: "B", point: Array[2], distance: 828}
map.js:79 Object {mas: "B", point: Array[2], distance: 754}