> For the complete documentation index, see [llms.txt](https://solaartw.gitbook.io/developer/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://solaartw.gitbook.io/developer/documentation/utilities/redscript/reference-sheets/language-features/intrinsics.md).

# Intrinsics

| Intrinsic        | Type                                | Description                                                     |
| ---------------- | ----------------------------------- | --------------------------------------------------------------- |
| `Equals`         | `(A, A) -> Bool`                    | Equality check (for references, enums, strings and booleans)    |
| `NotEquals`      | `(A, A) -> Bool`                    | Inequality check (same as above)                                |
| `IsDefined`      | `(ref<A>) -> Bool(wref<A>) -> Bool` | Null check                                                      |
| `ToString`       | `(A) -> String`                     | String conversion                                               |
| `EnumInt`        | `(A) -> Int32`                      | Enum-to-Int32 conversion                                        |
| `IntEnum`        | `(Int32) -> A`                      | Int32-to-enum conversion                                        |
| `ToVariant`      | `(A) -> Variant`                    | Variant constructor                                             |
| `FromVariant`    | `(Variant) -> A`                    | Variant extractor (fails at runtime if the type does not match) |
| `ArraySize`      | `(array<A>) -> Int32`               | ​                                                               |
| `ArrayPush`      | `(array<A>, A) -> Void`             | ​                                                               |
| `ArrayPop`       | `(array<A>) -> A`                   | ​                                                               |
| `ArrayClear`     | `(array<A>) -> Void`                | ​                                                               |
| `ArrayResize`    | `(array<A>, Int32) -> Void`         | ​                                                               |
| `ArrayFindFirst` | `(array<A>, A) -> A`                | ​                                                               |
| `ArrayFindLast`  | `(array<A>, A) -> A`                | ​                                                               |
| `ArrayContains`  | `(array<A>, A) -> Bool`             | ​                                                               |
| `ArrayCount`     | `(array<A>, A) -> Int32`            | ​                                                               |
| `ArrayInsert`    | `(array<A>, Int32, A) -> Void`      | ​                                                               |
| `ArrayRemove`    | `(array<A>, A) -> Bool`             | ​                                                               |
| `ArrayGrow`      | `(array<A>, Int32) -> Void`         | ​                                                               |
| `ArrayErase`     | `(array<A>, Int32) -> Void`         | ​                                                               |
| `ArrayLast`      | `(array<A>) -> A`                   | ​                                                               |