up: add some new help methods

Author: inhere

src/Str/StrValue.php

@@ -26,6 +26,16 @@ public static function new(string $str): self
         return new self($str);
     }
 
+    /**
+     * @param string $str
+     *
+     * @return self
+     */
+    public static function newTrim(string $str): self
+    {
+        return new self(trim($str));
+    }
+
     /**
      * Class constructor.
      *

src/Util/Optional.php

@@ -51,6 +51,21 @@ public static function empty(): self
         return self::$empty;
     }
 
+    /**
+     * Creates an nullable Optional given a return value.
+     * - value assert by `empty` function.
+     *
+     * @template S
+     *
+     * @param S $value
+     *
+     * @return static
+     */
+    public static function ofEmptyAble(mixed $value): self
+    {
+        return empty($value) ? self::empty() : self::of($value);
+    }
+
     /**
      * Creates an nullable Optional given a return value.
      *