An
array, also known as a vector, is one of the simplest
data structures in
computer programming. Arrays hold a group of equally sized data elements in a continuous block of memory. Individual elements are accessed by index
? using
integers (contrast: [associative array]
?).
Arrays permit efficient (constant time, O(1)) random access but not efficient insertion and deletion of elements (which are O(n), where n is the size of the array). Compare linked lists which have the opposite trade-off.
Most programming languages have arrays built in.
![[Home]](wikipedia.png)