Arrays/slices

A slice/array is a sequence of elements. They are zero indexed, not a fixed size and can be modified on the fly.

Defining a new array

[1, 2, 3]

Appending elements to an array

[$someArray, 4]

Removing elements from an array

[1, 2, 3].filter($this % 2 == 0)

Accessing by index

$someArray[1]

Accessing last array index

$someArray[len($someArray)-1]

Accessing a range of items

The range index syntax can be a powerful tool: [start:end]

The result will be a new array containing the given range of indexes from start to end.

Take the first 5 items of an array

$someArray[0:4]

Take the last 5 items of an array

$someArray[ len($someArray)-6 : len($someArray)-1 ]