(string) lc_first                          (delimiter = '_')
          
    First word to uncapitalize, even if it was acronym.
Parameters:
| name | type | default | caption | 
|---|---|---|---|
| delimiter | string | '_' | Delimiter. | 
Returns:
- (string) — Uncapitalized String.
Author:
- StewEucen
Since:
- Version 1.0.0
Examples:
"StudlyCaps".lc_first()   #=> "studlyCaps"
"UIView".lc_first()       #=> "ui_View"