[getAll] Support precision, closes #542

src/getAll.js

@@ -1,5 +1,6 @@
 import ColorSpace from "./ColorSpace.js";
 import getColor from "./getColor.js";
+import { toPrecision } from "./util.js";
 
 /** @typedef {import("./types.js").ColorTypes} ColorTypes */
 /** @typedef {import("./types.js").Coords} Coords */
@@ -8,16 +9,26 @@ import getColor from "./getColor.js";
  * Get the coordinates of a color in any color space
  * @param {ColorTypes} color
  * @param {string | ColorSpace} space The color space to convert to. Defaults to the color's current space
+ * @param {number} [precision] The number of significant digits to round the coordinates to
  * @returns {Coords} The color coordinates in the given color space
  */
-export default function getAll (color, space) {
+export default function getAll (color, space, precision) {
 	color = getColor(color);
 
+	if (typeof space === "number") {
+		precision = space;
+		space = color.space;
+	}
+
+	let coords;
 	if (!space || color.space.equals(space)) {
 		// No conversion needed
-		return color.coords.slice();
+		coords = color.coords.slice();
+	}
+	else {
+		space = ColorSpace.get(space);
+		coords = space.from(color);
 	}
 
-	space = ColorSpace.get(space);
-	return space.from(color);
+	return precision === undefined ? coords : coords.map(coord => toPrecision(coord, precision));
 }

test/coords.js

@@ -28,6 +28,20 @@ export default {
 					},
 					expect: [1, 0, 0],
 				},
+				{
+					name: "color.getAll(1)",
+					run () {
+						return this.data.red_oklch.getAll(1);
+					},
+					expect: [.6, .3, 30],
+				},
+				{
+					name: "color.getAll('oklch', 1)",
+					run () {
+						return this.data.red.getAll("oklch", 1);
+					},
+					expect: [.6, .3, 30],
+				},
 				{
 					name: "color.alpha",
 					run () {