Block Editor: Optimize useAvailableAlignments performance (#46655)

WordPress · Dec 20, 2022 · cd7a7c7 · cd7a7c7 · github-actions · Dec 20, 2022
1 parent 86a1c19
commit cd7a7c7
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/packages/block-editor/src/components/block-alignment-control/use-available-alignments.js b/packages/block-editor/src/components/block-alignment-control/use-available-alignments.js
@@ -10,6 +10,7 @@ import { useLayout } from '../block-list/layout';
 import { store as blockEditorStore } from '../../store';
 import { getLayoutType } from '../../layouts';
 
+const EMPTY_ARRAY = [];
 const DEFAULT_CONTROLS = [ 'none', 'left', 'center', 'right', 'wide', 'full' ];
 const WIDE_CONTROLS = [ 'wide', 'full' ];
 
@@ -40,14 +41,14 @@ export default function useAvailableAlignments( controls = DEFAULT_CONTROLS ) {
 		// While we treat `none` as an alignment, we shouldn't return it if no
 		// other alignments exist.
 		if ( alignments.length === 1 && alignments[ 0 ].name === 'none' ) {
-			return [];
+			return EMPTY_ARRAY;
 		}
 		return alignments;
 	}
 
 	// Starting here, it's the fallback for themes not supporting the layout config.
 	if ( layoutType.name !== 'default' && layoutType.name !== 'constrained' ) {
-		return [];
+		return EMPTY_ARRAY;
 	}
 	const { alignments: availableAlignments = DEFAULT_CONTROLS } = layout;
 	const enabledControls = controls
@@ -66,7 +67,7 @@ export default function useAvailableAlignments( controls = DEFAULT_CONTROLS ) {
 		enabledControls.length === 1 &&
 		enabledControls[ 0 ].name === 'none'
 	) {
-		return [];
+		return EMPTY_ARRAY;
 	}
 
 	return enabledControls;