> For AI agents: the complete documentation index is available at https://rslint.rs/llms.txt, the full documentation bundle is available at https://rslint.rs/llms-full.txt.

# prefer-numeric-literals

[Added in v0.6.5](https://github.com/web-infra-dev/rslint/releases/tag/v0.6.5)
## Configuration


```ts title=rslint.config.ts
import { defineConfig, js } from '@rslint/core';

export default defineConfig([
  js.configs.recommended,
  {
    rules: {
      'prefer-numeric-literals': 'error',
    },
  },
]);
```

## Rule Details

This rule disallows `parseInt()` and `Number.parseInt()` when binary, octal,
or hexadecimal numeric literals can be used instead.

Examples of **incorrect** code for this rule:

```javascript
parseInt("111110111", 2) === 503;
parseInt(`767`, 8) === 503;
Number.parseInt("1F7", 16) === 255;
```

Examples of **correct** code for this rule:

```javascript
0b111110111 === 503;
0o767 === 503;
0x1F7 === 503;

parseInt(foo, 2);
parseInt("11", 10);
Number.parseInt("11", 36);
```

## Original Documentation

- [ESLint: prefer-numeric-literals](https://eslint.org/docs/latest/rules/prefer-numeric-literals)
- [Source code](https://github.com/eslint/eslint/blob/v10.8.1/lib/rules/prefer-numeric-literals.js)