---
title: TypeScript Helper Functions | HackerRank Explained
description: Some helper functions to be used while developing HackerRank solutions to avoid duplicating code and making solutions more elegant.
---

# Helper Functions

## add(x, y)

```{literalinclude} /../src/hackerrank/typescript/lib/add.test.ts
:language: typescript
```

```{literalinclude} /../src/hackerrank/typescript/lib/add.ts
:language: typescript
```