Laravel 8 finish {#collection-method}

finish 方法用于判断指定字符串末尾是否有特定字符，若没有，则将其添加到字符串末尾：

use Illuminate\Support\Str;

$adjusted = Str::of('this/string')->finish('/');

// this/string/

$adjusted = Str::of('this/string/')->finish('/');

// this/string/