# react-core-linter: static-string
URL: https://generaltranslation.com/en-US/docs/react-core-linter/rules/static-string.mdx
---
title: static-string
description: Enforce static string usage in translation functions
---

## Overview

Ensures that translation functions like [`gt`](/docs/react/api/strings/use-gt) and [`msg`](/docs/react/api/strings/msg) only accept static strings.

## Reference

### Options

| Option | Type | Default | Description |
|--------|------|---------|-------------|
| `libs` | `string[]` | `["gt-react", "gt-next", "gt-react-native", "gt-i18n", "@generaltranslation/react-core"]` | Array of library modules to check for translation functions |

---

## Examples

### staticStringRequired

Registration functions can only accept static strings.

#### ❌ Incorrect

```jsx
const gt = useGT();
const dynamicKey = 'Hello';
gt(dynamicKey);
```

#### ✅ Correct

```jsx
const gt = useGT();
gt('Hello');
```

### variableInterpolationRequired

Dynamic string construction is not allowed. Use ICU-style variable interpolation instead.

#### ❌ Incorrect

```jsx
const gt = useGT();
gt(`Hello ${name}!`);
gt('Hello ' + name);
```

#### ✅ Correct

```jsx
const gt = useGT();
gt('Hello {name}!', { name });
```

---

## Configuration

```json
{
  "@generaltranslation/react-core-linter/static-string": ["error", {
    "libs": ["gt-react", "gt-next", "gt-react-native"]
  }]
}
```