Make color space optional in getAll() + colorSpace.equals() improvements

src/getAll.js

@@ -1,12 +1,17 @@
 import ColorSpace from "./space.js";
 
 /**
- * Get the coordinates of a color in another color space
- *
- * @param {string | ColorSpace} space
- * @returns {number[]}
+ * Get the coordinates of a color in any color space
+ * @param {Color} color
+ * @param {string | ColorSpace} [space = color.space] The color space to convert to. Defaults to the color's current space
+ * @returns {number[]} The color coordinates in the given color space
  */
 export default function getAll (color, space) {
+	if (!space || color.space.equals(space)) {
+		// No conversion needed
+		return color.coords.slice();
+	}
+
 	space = ColorSpace.get(space);
 	return space.from(color);
 }

src/space.js

@@ -158,13 +158,18 @@ export default class ColorSpace {
 		return null;
 	}
 
-	// We cannot rely on simple === because then ColorSpace objects cannot be proxied
+	/**
+	 * Check if this color space is the same as another color space reference.
+	 * Allows proxying color space objects and comparing color spaces with ids.
+	 * @param {string | ColorSpace} space ColorSpace object or id to compare to
+	 * @returns {boolean}
+	 */
 	equals (space) {
 		if (!space) {
 			return false;
 		}
 
-		return this === space || this.id === space.id;
+		return this === space || this.id === space || this.id === space.id;
 	}
 
 	to (space, coords) {