Sparse vs Dense Array 密集的数组(dense-arrays,这个不太好翻译) JavaScript: sparse arrays vs. dense arrays 密集的数组(dense-arrays,这个不太好翻译) JavaScript: sparse arrays vs. dense arrays Sparse vs Dense Array JavaScript: sparse arrays vs. dense arrays detected 密集的数组(dense-arrays,这个不太好翻译) JavaScript: sparse arrays vs. dense arrays