# Array concatenation

```perl
my @array1 = 1, 2, 3;
my @array2 = 4, 5, 6;

# If you want to concatenate two array to form a third,
# either use the slip operator "|", to flatten each array.

my @array3 = |@array1, |@array2;
say @array3;

# or just flatten both arrays in one fell swoop

@array3 = flat @array1, @array2;
say @array3;

# On the other hand, if you just want to add the elements
# of the second array to the first, use the .append method.

say @array1.append: @array2;
```

#### Output:

```
[1 2 3 4 5 6]
[1 2 3 4 5 6]
[1 2 3 4 5 6]
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://trizen.gitbook.io/perl6-rosettacode/programming_tasks/a/array_concatenation.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.