#### Concise formatting of number-only arrays (#10106, #10160 by @thorn0) While in general, Prettier avoids this kind of formatting because it's not diff-friendly, in this special case we decided that the benefits outweigh the risks. If at least one element has a trailing single-line (`// ...`) comment on the same line, the concise formatting isn't applied. On the other hand, single-line comments placed on separate lines don't have such an effect and – as well as empty lines – can be used for logical grouping. ```jsx // Input const lazyCatererNumbers = [1, 2, 4, 7, 11, 16, 22, 29, 37, 46, // n > 10 56, 67, 79, 92, 106, 121, 137, 154, 172, 191, 211, 232, 254, 277, 301, 326, 352, 379, 407, 436, 466, 497, 529, 562, 596, 631, 667, 704, 742, 781, // n > 40 821, 862, 904, 947, 991, 1036, 1082, 1129, 1177, 1226, 1276, 1327, 1379]; // Prettier stable const lazyCatererNumbers = [ 1, 2, 4, 7, 11, 16, 22, 29, 37, // ... ✂ 46 lines ✂ ... 1379, ]; // Prettier main const lazyCatererNumbers = [ 1, 2, 4, 7, 11, 16, 22, 29, 37, 46, // n > 10 56, 67, 79, 92, 106, 121, 137, 154, 172, 191, 211, 232, 254, 277, 301, 326, 352, 379, 407, 436, 466, 497, 529, 562, 596, 631, 667, 704, 742, 781, // n > 40 821, 862, 904, 947, 991, 1036, 1082, 1129, 1177, 1226, 1276, 1327, 1379, ]; ```