Function countWords

countWords(str: string): number
Counts the number of words in a string.
Parameters
- str: string
  The input string
Returns number
Number of words in the string.
Example
```
countWords("js utils kit");         // 3
countWords("   js   utils   kit");  // 3
countWords("");                     // 0
```
- Defined in src/string/fn.ts:75