#1: five-arrays array-union x 511,121 ops/sec ±0.80% (96 runs sampled) arr-union x 5,716,039 ops/sec ±0.86% (93 runs sampled)
#2: ten-arrays array-union x 245,196 ops/sec ±0.69% (94 runs sampled) arr-union x 1,850,786 ops/sec ±0.84% (97 runs sampled)
#3: two-arrays array-union x 563,869 ops/sec ±0.97% (94 runs sampled) arr-union x 9,602,852 ops/sec ±0.87% (92 runs sampled)