Function prefix

prefix(
    prefixString: string,
    value: string | number | bigint | boolean | null | undefined,
    defaultValue?: string,
): string
Prepend prefixString to value, or return defaultValue if value is null, undefined, or an empty string.
Parameters
- prefixString: string
- value: string | number | bigint | boolean | null | undefined
- defaultValue: string = ''
Returns string
Example
```
prefix('$', 5); // '$5'
prefix('$', null, 'N/A'); // 'N/A'
```
- Defined in src/prefix.ts:12