Components: Refactor Slot and Fill away from Lodash

packages/components/CHANGELOG.md

@@ -15,6 +15,7 @@
 -   `TreeSelect`: Refactor away from `_.repeat()` ([#42070](https://github.com/WordPress/gutenberg/pull/42070/)).
 -   `FocalPointPicker` updated to satisfy `react/exhuastive-deps` eslint rule ([#41520](https://github.com/WordPress/gutenberg/pull/41520)).
 -   `ColorPicker` updated to satisfy `react/exhuastive-deps` eslint rule ([#41294](https://github.com/WordPress/gutenberg/pull/41294)).
+-   `Slot`/`Fill`: Refactor away from Lodash ([#42153](https://github.com/WordPress/gutenberg/pull/42153/)).
 
 ### Bug Fix
 

packages/components/src/slot-fill/index.native.js

@@ -1,8 +1,3 @@
-/**
- * External dependencies
- */
-import { omit } from 'lodash';
-
 /**
  * Internal dependencies
  */
@@ -12,8 +7,8 @@ import Provider from './provider';
 
 export { Fill, Provider };
 
-export function Slot( props ) {
-	return <BaseSlot { ...omit( props, 'bubblesVirtually' ) } />;
+export function Slot( { bubblesVirtually, ...restProps } ) {
+	return <BaseSlot { ...restProps } />;
 }
 
 export function createSlotFill( name ) {

packages/components/src/slot-fill/provider.js

@@ -1,9 +1,4 @@
 // @ts-nocheck
-/**
- * External dependencies
- */
-import { without } from 'lodash';
-
 /**
  * WordPress dependencies
  */
@@ -78,7 +73,8 @@ export default class SlotFillProvider extends Component {
 	}
 
 	unregisterFill( name, instance ) {
-		this.fills[ name ] = without( this.fills[ name ], instance );
+		this.fills[ name ] =
+			this.fills[ name ]?.filter( ( fill ) => fill !== instance ) ?? [];
 		this.forceUpdateSlot( name );
 	}
 
@@ -115,7 +111,7 @@ export default class SlotFillProvider extends Component {
 		this.listeners.push( listener );
 
 		return () => {
-			this.listeners = without( this.listeners, listener );
+			this.listeners = this.listeners.filter( ( l ) => l !== listener );
 		};
 	}
 

packages/components/src/slot-fill/slot.js

@@ -1,9 +1,4 @@
 // @ts-nocheck
-/**
- * External dependencies
- */
-import { isString, map } from 'lodash';
-
 /**
  * WordPress dependencies
  */
@@ -72,25 +67,27 @@ class SlotComponent extends Component {
 	render() {
 		const { children, name, fillProps = {}, getFills } = this.props;
 
-		const fills = map( getFills( name, this ), ( fill ) => {
-			const fillChildren = isFunction( fill.children )
-				? fill.children( fillProps )
-				: fill.children;
-
-			return Children.map( fillChildren, ( child, childIndex ) => {
-				if ( ! child || isString( child ) ) {
-					return child;
-				}
-
-				const childKey = child.key || childIndex;
-				return cloneElement( child, { key: childKey } );
-			} );
-		} ).filter(
-			// In some cases fills are rendered only when some conditions apply.
-			// This ensures that we only use non-empty fills when rendering, i.e.,
-			// it allows us to render wrappers only when the fills are actually present.
-			( element ) => ! isEmptyElement( element )
-		);
+		const fills = ( getFills( name, this ) ?? [] )
+			.map( ( fill ) => {
+				const fillChildren = isFunction( fill.children )
+					? fill.children( fillProps )
+					: fill.children;
+
+				return Children.map( fillChildren, ( child, childIndex ) => {
+					if ( ! child || typeof child === 'string' ) {
+						return child;
+					}
+
+					const childKey = child.key || childIndex;
+					return cloneElement( child, { key: childKey } );
+				} );
+			} )
+			.filter(
+				// In some cases fills are rendered only when some conditions apply.
+				// This ensures that we only use non-empty fills when rendering, i.e.,
+				// it allows us to render wrappers only when the fills are actually present.
+				( element ) => ! isEmptyElement( element )
+			);
 
 		return <>{ isFunction( children ) ? children( fills ) : fills }</>;
 	}