Function snakeCase

snakeCase(str: string): string
Convert string to snake_case

将字符串转换为蛇形命名法
Parameters
- str: string
  The string to convert. 要转换的字符串
Returns string
The string in snake_case. 转换后的蛇形命名法字符串
Example
```
snakeCase('a b c') // => a_b_c
snakeCase('orderBy') // => order_by
```
- Defined in src/string/snake-case.ts:19