Comments (1)
The function get
retrieves an element from a map by key. Most commonly a map is either hash-map
or a standard hash-table
, however an ALIST
or PLIST
can also be used as a map. The get
function already contains a method, specialized on lists, which treats the list as an ALIST
or PLIST
, depending on the whether the first element is a CONS
, and retrieves the element with the given key.
The generic-cl:elt
function performs the function you're looking for, retrieving an element from a sequence by index and it has methods which work on both lists and arrays. However, it doesn't have a method specialized for HASH-MAPS
's that allows you to retrieve a map element by key.
If having a unified interface for retrieving a sequence element by index and by key is important, an elt
method specialized on HASH-MAPS
's can be added which simply treats its index
argument as a key and retrieves the value of the map entry corresponding to the key.
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Related Issues (7)
- "Lock on package COMMON-LISP violated" on versions above 0.1 with SBCL HOT 2
- Don't depend on cl-arrows HOT 3
- test/sequences fails: Heap exhausted during garbage collection HOT 5
- :serial t missing in .asd? HOT 5
- cl-arrows is proprietary software HOT 2
- Issues in the test: Clauses in loop, AT and (SETF AT) on hash-table-iterator HOT 1
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