elisp: Vector Type

 
 2.3.9 Vector Type
 -----------------
 
 A “vector” is a one-dimensional array of elements of any type.  It takes
 a constant amount of time to access any element of a vector.  (In a
 list, the access time of an element is proportional to the distance of
 the element from the beginning of the list.)
 
    The printed representation of a vector consists of a left square
 bracket, the elements, and a right square bracket.  This is also the
 read syntax.  Like numbers and strings, vectors are considered constants
 for evaluation.
 
      [1 "two" (three)]      ; A vector of three elements.
           ⇒ [1 "two" (three)]
 
    SeeVectors, for functions that work with vectors.