X-Git-Url: https://git.saurik.com/redis.git/blobdiff_plain/43f30ac0f9bcc4a7afb06136a8dfe5b703be7935..59aee5513d27fdf2d24499f35611093fa0fab3fb:/doc/LrangeCommand.html diff --git a/doc/LrangeCommand.html b/doc/LrangeCommand.html index 293d8e8c..28dbf890 100644 --- a/doc/LrangeCommand.html +++ b/doc/LrangeCommand.html @@ -16,7 +16,7 @@
-LrangeCommand: Contents
  LRANGE _key_ _start_ _end_
    Return value +LrangeCommand: Contents
  LRANGE _key_ _start_ _end_
    Consistency with range functions in various programming languages
    Out-of-range indexes
    Return value

LrangeCommand

@@ -27,12 +27,17 @@
#sidebar ListCommandsSidebar

LRANGE _key_ _start_ _end_

-Time complexity: O(n) (with n being the length of the range)
Return the specified elements of the list stored at the specifiedkey. Start and end are zero-based indexes. 0 is the first elementof the list (the list head), 1 the next element and so on.
-
For example LRANGE foobar 0 2 will return the first three elementsof the list.
-
_start_ and end can also be negative numbers indicating offsetsfrom the end of the list. For example -1 is the last element ofthe list, -2 the penultimate element and so on.
-
Indexes out of range will not produce an error: if start is overthe end of the list, or start > end, an empty list is returned.If end is over the end of the list Redis will threat it just likethe last element of the list.
-

Return value

Multi bulk reply, specifically a list of elements in the specified range. - +Time complexity: O(start+n) (with n being the length of the range and start being the start offset)Return the specified elements of the list stored at the specified +key. Start and end are zero-based indexes. 0 is the first element +of the list (the list head), 1 the next element and so on.

For example LRANGE foobar 0 2 will return the first three elements +of the list.

start and end can also be negative numbers indicating offsets +from the end of the list. For example -1 is the last element of +the list, -2 the penultimate element and so on.

Consistency with range functions in various programming languages

Note that if you have a list of numbers from 0 to 100, LRANGE 0 10 will return +11 elements, that is, rightmost item is included. This may or may not be consistent with +behavior of range-related functions in your programming language of choice (think Ruby's Range.new, Array#slice or Python's range() function).

LRANGE behavior is consistent with one of Tcl.

Out-of-range indexes

Indexes out of range will not produce an error: if start is over +the end of the list, or start > end, an empty list is returned. +If end is over the end of the list Redis will threat it just like +the last element of the list.

Return value

Multi bulk reply, specifically a list of elements in the specified range.