# List built-in class

Mutable list of any objects.

It's class in Ling is `List`:

    [1,2,3]::class
    >>> List

you can use it's class to ensure type:

    []::class == List
    >>> true

## Members

| name    | meaning                       | type |
|---------|-------------------------------|------|
| `.size` | property returns current size | Int  |
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