# Getting started with TypeScript v2 functions
TypeScript v2 allows users to take advantage of several key [improvements over TypeScript v1](../language-feature-support/index.md#typescript-v1-vs-typescript-v2), including a Node.js runtime and first-class OSDK support. Review the sections below to get started.
## Create a TypeScript v2 functions repository
Navigate to a project of your choice and create a new code repository by selecting **+ New > Repository**. Select the TypeScript v2 functions template to initialize your repository.
Once the repository has been created, navigate to the `typescript-functions/src/functions/helloWorld.ts` file.
Before you can import Ontology types into a function, add your object types and link types through the **Resource imports** sidebar, then generate and install the Ontology SDK. Refer to [Generate the Ontology SDK](../typescript-v2-migration/index.md#generate-the-ontology-sdk) for these steps.
## Write a function
To write a new function, create a new file in the `typescript-functions/src/functions` directory of your repository and give it a descriptive name, for example, `helloWorld.ts`. Write your function using `export default` for Foundry to detect it.
```typescript tab="TypeScript v2"
export default function helloWorld(): string {
return "Hello World!";
}
```
You must satisfy the following conditions for your function to be published to Foundry:
1. Define your function in a `.ts` file in the `typescript-functions/src/functions` directory. In this directory, you can also group related functions in subdirectories.
2. The name of your file must match the name of your function. For a function called `myFunction` to be published, it must be defined in a file called `myFunction.ts` within the `typescript-functions/src/functions` directory.
3. The TypeScript function must be the default export of your file.
4. Your function's input and output types must follow the supported function types, as detailed in the [type reference](../types-reference/index.md).
Your function's file path is used to uniquely identify the function that gets published from it, so changing the file path will result in a new function being published.
## Test in live preview
To test your function in live preview, open the **Functions** helper and select **Live preview**. Choose your function and select **Run** to execute.
## Commit and publish a function
Select **Commit** at the upper right corner of the window to commit your changes to the `master` branch of your repository. To view your function's checks, open the **Checks** tab at the top of the page. Here, after making a commit, you should see a running check.
After committing your work, you will see the **Tag version** option. This will publish all of the functions in your repository.
Select **Tag version** to tag a release off of the `master` branch. Set the tag name based on the extent of your changes, and then select **Tag and release**.
To view the progress as your functions are tagged and released, select the **View** pop-up or navigate to the **Tags** tab. Once **Step 2: Release** is completed, select the published functions to view them in the function registry.
:::callout{theme="warning"}
Functions may not be immediately searchable by name in Workshop or the function registry while permissions propagate.
:::
## Use a new function
After the checks for your tag have passed, navigate back to the **Code** tab in **Code Repositories** and select the **Functions** helper. You should now be able to see your functions under the **Published** section. Select it and run the new function:
## Next steps
After you create and publish a basic function, explore these capabilities:
* **Ontology SDK:** To query or edit Ontology objects, first import the object and link types you need, then [generate and install the Ontology SDK](../typescript-v2-migration/index.md#generate-the-ontology-sdk).
* **Ontology edits:** Learn how to [create, update, and delete objects](../typescript-v2-ontology-edits/index.md) in your functions.
* **Staged writes \[Beta]:** For edit functions that need read-after-write guarantees or nested function calls, see [staged writes](../typescript-v2-staged-writes/index.md).