# generaltranslation: General Translation Core SDK: Variable
URL: https://generaltranslation.com/en-US/docs/core/types/Variable.mdx
---
title: Variable
description: Type definition for variables used in translation content
---

## Overview

`Variable` represents a placeholder for dynamic content in translations.

```typescript
type Variable = {
  k: string;
  i?: number;
  v?: VariableType;
};
```

## Properties

| Property | Type | Description |
|----------|------|-------------|
| `k` | `string` | Variable key/name |
| `i?` | `number` | Internal identifier |
| `v?` | `VariableType` | Formatting type |

### VariableType

```typescript
type VariableType = 'v' | 'n' | 'd' | 'c';
```

| Value | Description |
|-------|-------------|
| `'v'` | Plain text substitution |
| `'n'` | Number formatting |
| `'d'` | Date formatting |
| `'c'` | Currency formatting |

## Examples

### Basic usage

```typescript copy
import { Variable } from 'generaltranslation';

// Text variable
const nameVariable: Variable = {
  k: 'userName'
};

// Number variable
const countVariable: Variable = {
  k: 'itemCount',
  v: 'n'
};

// Currency variable
const priceVariable: Variable = {
  k: 'price',
  v: 'c'
};
```

### In JSX content

```typescript copy
const welcomeContent = [
  'Welcome back, ',
  { k: 'userName' } as Variable,
  '! You have ',
  { k: 'messageCount', v: 'n' } as Variable,
  ' messages.'
];
```

## Related types

* [`VariableType`](/docs/core/types/variable-type) - Formatting type specifications