Voir la source de HP Prime/Commands/Guides/All About Lists

<div style='text-align: center;'>This is a backup copy of the article from the old "HPWiki" of TI-Planet (that only hosted HP Prime info), initially authored by Iconmaster</div><hr>
The list data type has a [[HP Prime/Commands/TYPE|type ID]] of 6.

= Making Constants =

To make a list, use curly braces:
<pre>
{}
{1}
{1,2,"str",{(1,2)}}
</pre>

Lists can have any type in them, and can have nested lists.

= Use =

List variables are indexable:
<pre>
LOCAL a := {1,2,3,4};
a[1] := 42;
PRINT(a[3]);
</pre>
Indexing an element out of range, or giving a non-integer real, throws an error.

Setting an element past the end of a list fills the intermediate elements with zeros:
<pre>
LOCAL a := {1,2,3,4};
a[8] := 42;
</pre>

Lists can also be indexed by element 0. This has different semantics between setting and setting index 0.
Getting index 0 returns the last item in the list:
<pre>
LOCAL a := {1,2,3,4};
PRINT(a[0]);
</pre>
Setting index 0 appends a new item to the list:
<pre>
LOCAL a := {1,2,3,4};
a[0] := 5;
</pre>

With nested lists, more than 1 index can be used to get/set members of nested lists:
<pre>
LOCAL a := {{5,6,7},2,3,4};
PRINT(a[1,2]);
a[1,2] := 42;
</pre>
The number of indices deep you can index is unlimited.

It is possible to get a sublist by indexing a list variable with a two-element list:
<pre>
LOCAL a := {1,2,3,4};
PRINT(a[{1,2}]);
</pre>
An index in this form must be exactly two elements long. The first element has to be a valid index into the list, and the second one must be equal to or larger than the first one. It grabs the elements between indices a and b.

Sublist notation can be combined with multiple indices:
<pre>
LOCAL a := {{5,6,7},2,3,4};
PRINT(a[1,{1,2}]);
</pre>
Only the last index into a list variable may be a 2-element list.

= Limits =

A list is limited to 10,000 elements. Attempting to create a longer list will result in [[HP Prime/Commands/Guides/Error Codes|error 38]] being thrown.

= Bugs =

When executing an [[HP Prime/Commands/EXPR|EXPR]] string inside a program (not on the command line), you can have no more than 2 indices into a list; it fails with [[HP Prime/Commands/Guides/Error Codes|error 22]] otherwise.