fix: improve REPL stringify logic (sveltejs#11609)

* fix: improve REPL stringify logic * fix: improve REPL stringify logic * Update sites/svelte-5-preview/src/lib/Output/srcdoc/index.html Co-authored-by: Simon H <[email protected]> --------- Co-authored-by: Simon H <[email protected]>
xxkl1 · May 14, 2024 · a8a5bb6 · a8a5bb6
1 parent fd43702
commit a8a5bb6
Showing 1 changed file with 16 additions and 1 deletion.
diff --git a/sites/svelte-5-preview/src/lib/Output/srcdoc/index.html b/sites/svelte-5-preview/src/lib/Output/srcdoc/index.html
@@ -274,7 +274,22 @@
 
 			function stringify(args) {
 				try {
-					return JSON.stringify(args);
+					return JSON.stringify(args, (key, value) => {
+						// if we don't do this, our Set/Map from svelte/reactivity would show up wrong in the console
+						if (value instanceof Map) {
+							return {
+								type: 'Map',
+								value
+							};
+						}
+						if (value instanceof Set) {
+							return {
+								type: 'Set',
+								value
+							};
+						}
+						return value;
+					});
 				} catch (error) {
 					return null;
 				}