tidy up code for #2940

hakimel · Apr 28, 2021 · 236d3e3 · 236d3e3
1 parent a112712
commit 236d3e3
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Showing 3 changed files with 5 additions and 9 deletions.
diff --git a/dist/reveal.esm.js b/dist/reveal.esm.js
diff --git a/dist/reveal.js b/dist/reveal.js
diff --git a/js/controllers/slidecontent.js b/js/controllers/slidecontent.js
@@ -102,13 +102,9 @@ export default class SlideContent {
 
 				// Images
 				if( backgroundImage ) {
-					let backgroundString = '';
-					backgroundImage.split(',').forEach(background => {
-						backgroundString = backgroundString.concat(
-							'url(' + encodeURI(background.trim()) + '),'
-						);
-					});
-					backgroundContent.style.backgroundImage = backgroundString.substr(0, backgroundString.length - 1);
+					backgroundContent.style.backgroundImage = backgroundImage.split( ',' ).map( background => {
+						return `url(${encodeURI(background.trim())})`;
+					}).join( ',' );
 				}
 				// Videos
 				else if ( backgroundVideo && !this.Reveal.isSpeakerNotes() ) {