@ckeditor/ckeditor5-utils - npm Package Compare versions

Comparing version 16.0.0 to 17.0.0

CHANGELOG.md

 Changelog
 =========
 
+## [17.0.0](https://github.com/ckeditor/ckeditor5-utils/compare/v16.0.0...v17.0.0) (2020-02-19)
+
+### MINOR BREAKING CHANGES
+
+* The `getResizeObserver()` helper is no longer available. We recommend using the [`ResizeObserver`](http://ckeditor.com/docs/ckeditor5/latest/api/module_utils_dom_resizeobserver-ResizeObserver.html) class instead.
+
+### Features
+
+* Added iterator interface to the `Config` class. ([1fdf2f1](https://github.com/ckeditor/ckeditor5-utils/commit/1fdf2f1))
+
+### Other changes
+
+* Improved `toMap()` method performance. This results in improved editor data processing speed. Closes [ckeditor/ckeditor5#5854](https://github.com/ckeditor/ckeditor5/issues/5854). ([fef816e](https://github.com/ckeditor/ckeditor5-utils/commit/fef816e))
+* Replaced the `getResizeObserver()` helper with the `ResizeObserver` class for performance reasons. See [ckeditor/ckeditor5#6145](https://github.com/ckeditor/ckeditor5/issues/6145). ([05c97f8](https://github.com/ckeditor/ckeditor5-utils/commit/05c97f8))
+* The `uid()` helper should be a lot faster. Closes [ckeditor/ckeditor5#6188](https://github.com/ckeditor/ckeditor5/issues/6188). ([b57fc3f](https://github.com/ckeditor/ckeditor5-utils/commit/b57fc3f))
+
+
 ## [16.0.0](https://github.com/ckeditor/ckeditor5-utils/compare/v15.0.0...v16.0.0) (2019-12-04)
@@ -5,0 +22,0 @@

LICENSE.md

@@ -5,3 +5,3 @@ Software License Agreement
 **CKEditor 5 utilities** – https://github.com/ckeditor/ckeditor5-utils <br>
-Copyright (c) 2003-2019, [CKSource](http://cksource.com) Frederico Knabben. All rights reserved.
+Copyright (c) 2003-2020, [CKSource](http://cksource.com) Frederico Knabben. All rights reserved.
 
@@ -8,0 +8,0 @@ Licensed under the terms of [GNU General Public License Version 2 or later](http://www.gnu.org/licenses/gpl.html).

package.json

 {
   "name": "@ckeditor/ckeditor5-utils",
-  "version": "16.0.0",
+  "version": "17.0.0",
   "description": "Miscellaneous utils used by CKEditor 5.",
@@ -15,6 +15,6 @@ "keywords": [
   "devDependencies": {
-    "@ckeditor/ckeditor5-build-classic": "^16.0.0",
-    "@ckeditor/ckeditor5-editor-classic": "^16.0.0",
-    "@ckeditor/ckeditor5-core": "^16.0.0",
-    "@ckeditor/ckeditor5-engine": "^16.0.0",
+    "@ckeditor/ckeditor5-build-classic": "^17.0.0",
+    "@ckeditor/ckeditor5-editor-classic": "^17.0.0",
+    "@ckeditor/ckeditor5-core": "^17.0.0",
+    "@ckeditor/ckeditor5-engine": "^17.0.0",
     "assertion-error": "^1.1.0",
@@ -21,0 +21,0 @@ "eslint": "^5.5.0",

src/areconnectedthroughproperties.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/ckeditorerror.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/collection.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/comparearrays.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/config.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -33,3 +33,5 @@ */
 		if ( defaultConfigurations ) {
-			this.define( defaultConfigurations );
+			// Clone the configuration to make sure that the properties will not be shared
+			// between editors and make the watchdog feature work correctly.
+			this.define( cloneConfig( defaultConfigurations ) );
 		}
@@ -118,2 +120,13 @@
 	/**
+	 * Iterates over all top level configuration names.
+	 *
+	 * @returns {Iterable.<String>}
+	 */
+	* names() {
+		for ( const name of Object.keys( this._config ) ) {
+			yield name;
+		}
+	}
+
+	/**
 	 * Saves passed configuration to the specified target (nested object).
@@ -228,3 +241,3 @@ *
 
-// A customizer function for cloneDeepWith.
+// A customized function for cloneDeepWith.
 // It will leave references to DOM Elements instead of cloning them.
@@ -231,0 +244,0 @@ //

src/count.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/diff.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/difftochanges.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/dom/createelement.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/dom/emittermixin.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -107,3 +107,3 @@ */
 	 *
-	 * @pivate
+	 * @private
 	 * @param {Node} node DOM Node of the ProxyEmitter.
@@ -110,0 +110,0 @@ * @returns {module:utils/dom/emittermixin~ProxyEmitter} ProxyEmitter instance or null.

src/dom/getancestors.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/dom/getborderwidths.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/dom/getcommonancestor.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/dom/getdatafromelement.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/dom/getpositionedancestor.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/dom/global.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/dom/indexof.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/dom/insertat.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/dom/isnode.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/dom/isrange.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/dom/istext.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/dom/iswindow.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/dom/position.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/dom/rect.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/dom/remove.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/dom/scroll.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/dom/setdatainelement.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/dom/tounit.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/elementreplacer.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/emittermixin.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/env.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/eventinfo.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/fastdiff.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/first.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/focustracker.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/isiterable.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/keyboard.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/keystrokehandler.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/locale.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/mapsequal.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/mix.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/nth.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/objecttomap.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -16,2 +16,4 @@ */
  *
+ * **Note**: For mixed data (`Object` or `Iterable`) there's a dedicated {@link module:utils/tomap~toMap} function.
+ *
  * @param {Object} obj Object to transform.
@@ -18,0 +20,0 @@ * @returns {Map} Map created from object.

src/observablemixin.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/priorities.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/spy.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/tomap.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -11,3 +11,3 @@ */
 import objectToMap from './objecttomap';
-import { isPlainObject } from 'lodash-es';
+import isIterable from './isiterable';
 
@@ -25,7 +25,7 @@ /**
 export default function toMap( data ) {
-	if ( isPlainObject( data ) ) {
+	if ( isIterable( data ) ) {
+		return new Map( data );
+	} else {
 		return objectToMap( data );
-	} else {
-		return new Map( data );
 	}
 }

src/translation-service.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/uid.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -10,16 +10,51 @@ */
 
+// A hash table of hex numbers to avoid using toString() in uid() which is costly.
+// [ '00', '01', '02', ..., 'fe', 'ff' ]
+const HEX_NUMBERS = new Array( 256 ).fill()
+	.map( ( val, index ) => ( '0' + ( index ).toString( 16 ) ).slice( -2 ) );
+
 /**
- * Returns a unique id. This id consist of an 'e' character and a randomly generated string of 32 aphanumeric characters.
- * Each character in uid string represents a hexadecimal digit (base 16).
+ * Returns a unique id. The id starts with an "e" character and a randomly generated string of
+ * 32 alphanumeric characters.
  *
- * @returns {String} A hexadecimal number representing the id.
+ * **Note**: The characters the unique id is built from correspond to the hex number notation
+ * (from "0" to "9", from "a" to "f"). In other words, each id corresponds to an "e" followed
+ * by 16 8-bit numbers next to each other.
+ *
+ * @returns {String} An unique id string.
  */
 export default function uid() {
-	let uuid = 'e'; // Make sure that id does not start with number.
+	// Let's create some positive random 32bit integers first.
+	//
+	// 1. Math.random() is a float between 0 and 1.
+	// 2. 0x100000000 is 2^32 = 4294967296.
+	// 3. >>> 0 enforces integer (in JS all numbers are floating point).
+	//
+	// For instance:
+	//		Math.random() * 0x100000000 = 3366450031.853859
+	// but
+	//		Math.random() * 0x100000000 >>> 0 = 3366450031.
+	const r1 = Math.random() * 0x100000000 >>> 0;
+	const r2 = Math.random() * 0x100000000 >>> 0;
+	const r3 = Math.random() * 0x100000000 >>> 0;
+	const r4 = Math.random() * 0x100000000 >>> 0;
 
-	for ( let i = 0; i < 8; i++ ) {
-		uuid += Math.floor( ( 1 + Math.random() ) * 0x10000 ).toString( 16 ).substring( 1 );
-	}
-
-	return uuid;
+	// Make sure that id does not start with number.
+	return 'e' +
+		HEX_NUMBERS[ r1 >> 0 & 0xFF ] +
+		HEX_NUMBERS[ r1 >> 8 & 0xFF ] +
+		HEX_NUMBERS[ r1 >> 16 & 0xFF ] +
+		HEX_NUMBERS[ r1 >> 24 & 0xFF ] +
+		HEX_NUMBERS[ r2 >> 0 & 0xFF ] +
+		HEX_NUMBERS[ r2 >> 8 & 0xFF ] +
+		HEX_NUMBERS[ r2 >> 16 & 0xFF ] +
+		HEX_NUMBERS[ r2 >> 24 & 0xFF ] +
+		HEX_NUMBERS[ r3 >> 0 & 0xFF ] +
+		HEX_NUMBERS[ r3 >> 8 & 0xFF ] +
+		HEX_NUMBERS[ r3 >> 16 & 0xFF ] +
+		HEX_NUMBERS[ r3 >> 24 & 0xFF ] +
+		HEX_NUMBERS[ r4 >> 0 & 0xFF ] +
+		HEX_NUMBERS[ r4 >> 8 & 0xFF ] +
+		HEX_NUMBERS[ r4 >> 16 & 0xFF ] +
+		HEX_NUMBERS[ r4 >> 24 & 0xFF ];
 }

src/unicode.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -4,0 +4,0 @@ */

src/version.js

 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
@@ -14,3 +14,3 @@ */
 
-const version = '16.0.0';
+const version = '17.0.0';
 
@@ -17,0 +17,0 @@ /* istanbul ignore next */

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Total package byte prevSize

243086

increased by2.95%

Lines of code

6086

increased by2.96%

No dependency changes