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Official ZPE/YASS documentationList data type

The list data type is one of the most powerful data types in ZPE. The list works similar to an array in other languages but unlike a standard array can be either fixed length or countably infinite.

Defining a list is easy:

YASS
$empty_list = []
$some_list = [1, 2, 3, 4]
  

There are many operations that can be performed on the list but perhaps the most common is simply obtaining an element from the list:

YASS
$some_list = [1, 2, 3, 4]
//This will obtain the third element from the list
$some_element = $some_list[2]
  

Defining a fixed-length array is also very easy by just defining in the brackets the default value of the array and then telling the compiler how many elements are needed:

YASS
$some_list = [0] * 5
  

Reference functions

The list data type provides several reference functions that allow for ease of use:

to_string () ⇒ string
Converts (casts) the list to a string
put (mixed value) ⇒ list
Puts an element at the end of the list.
push (mixed value) ⇒ list
Adds an element to the start of the list.
getc (number index) ⇒ mixed
Gets an element using a circular index, meaning that it will always be index safe.
sublist (number from, number to) ⇒ list
Gets a sublist of the list.
remove (number index) ⇒ list
Removes an element from a list at a specified index.
length () ⇒ number
Returns the length or size of the list.
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