feat(json-crdt): 🎸 improve how model view is printed in .toString()

Author: streamich

src/json-crdt/__demos__/type-safety.ts

@@ -8,6 +8,8 @@
 
 import {Model, n} from '..';
 
+console.clear();
+
 const model = Model.withLogicalClock(1234) as Model<
   n.obj<{
     num: n.con<number>;

src/json-crdt/model/Model.ts

@@ -347,15 +347,15 @@ export class Model<RootJsonNode extends JsonNode = JsonNode> implements Printabl
           this.index.forEach((item) => nodes.push(item.v));
           return (
             `Index (${nodes.length} nodes)` +
-            printTree(
+            (nodes.length ? printTree(
               tab,
               nodes.map((node) => (tab) => `${node.constructor.name} ${toDisplayString(node.id)}`),
-            )
+            ) : '')
           );
         },
         nl,
         // (tab) => `View ${toTree(this.view(), tab)}`,
-        (tab) => `View${printTree(tab, [(tab) => JSON.stringify(this.view(), null, 2).replace(/\n/g, '\n' + tab)])}`,
+        (tab) => `View${printTree(tab, [(tab) => String(JSON.stringify(this.view(), null, 2)).replace(/\n/g, '\n' + tab)])}`,
         nl,
         (tab) => this.clock.toString(tab),
         hasExtensions ? nl : null,