2 files changed, 15 insertions, 11 deletions
diff --git a/ext/wasm/fiddle/fiddle-worker.js b/ext/wasm/fiddle/fiddle-worker.js
index 67f6100..27d915e 100644
--- a/ext/wasm/fiddle/fiddle-worker.js
+++ b/ext/wasm/fiddle/fiddle-worker.js
@@ -166,11 +166,10 @@
       stdout("SQLite version", capi.sqlite3_libversion(),
              capi.sqlite3_sourceid().substr(0,19));
       stdout('Welcome to the "fiddle" shell.');
-      if(sqlite3.opfs){
+      if(capi.sqlite3_vfs_find("opfs")){
         stdout("\nOPFS is available. To open a persistent db, use:\n\n",
                "  .open file:name?vfs=opfs\n\nbut note that some",
                "features (e.g. upload) do not yet work with OPFS.");
-        sqlite3.opfs.registerVfs();
       }
       stdout('\nEnter ".help" for usage hints.');
       this.exec([ // initialization commands...
@@ -317,7 +316,7 @@
     };
     console.warn("Unknown fiddle-worker message type:",ev);
   };
-  
+
   /**
      emscripten module for use with build mode -sMODULARIZE.
   */
@@ -374,9 +373,7 @@
                  "for use in the dev console.", sqlite3);
     globalThis.sqlite3 = sqlite3;
     const dbVfs = sqlite3.wasm.xWrap('fiddle_db_vfs', "*", ['string']);
-    fiddleModule.fsUnlink = (fn)=>{
-      return sqlite3.wasm.sqlite3_wasm_vfs_unlink(dbVfs(0), fn);
-    };
+    fiddleModule.fsUnlink = (fn)=>fiddleModule.FS.unlink(fn);
     wMsg('fiddle-ready');
   }).catch(e=>{
     console.error("Fiddle worker init failed:",e);
diff --git a/ext/wasm/fiddle/fiddle.js b/ext/wasm/fiddle/fiddle.js
index 2a3d174..d285898 100644
--- a/ext/wasm/fiddle/fiddle.js
+++ b/ext/wasm/fiddle/fiddle.js
@@ -403,8 +403,10 @@
     E('#btn-reset').addEventListener('click',()=>SF.resetDb());
     const taInput = E('#input');
     const btnClearIn = E('#btn-clear');
+    const selectExamples = E('#select-examples');
     btnClearIn.addEventListener('click',function(){
       taInput.value = '';
+      selectExamples.selectedIndex = 0;
     },false);
     // Ctrl-enter and shift-enter both run the current SQL.
     taInput.addEventListener('keydown',function(ev){
@@ -733,16 +735,15 @@
         ]},
               //{name: "Timer on", sql: ".timer on"},
               // ^^^ re-enable if emscripten re-enables getrusage()
+        {name: "Box Mode", sql: ".mode box"},
         {name: "Setup table T", sql:[
           ".nullvalue NULL\n",
           "CREATE TABLE t(a,b);\n",
           "INSERT INTO t(a,b) VALUES('abc',123),('def',456),(NULL,789),('ghi',012);\n",
           "SELECT * FROM t;\n"
         ]},
-        {name: "Table list", sql: ".tables"},
-        {name: "Box Mode", sql: ".mode box"},
-        {name: "JSON Mode", sql: ".mode json"},
-        {name: "Mandlebrot", sql:[
+        {name: "sqlite_schema", sql: "select * from sqlite_schema"},
+        {name: "Mandelbrot", sql:[
           "WITH RECURSIVE",
           "  xaxis(x) AS (VALUES(-2.0) UNION ALL SELECT x+0.05 FROM xaxis WHERE x<1.2),\n",
           "  yaxis(y) AS (VALUES(-1.0) UNION ALL SELECT y+0.1 FROM yaxis WHERE y<1.0),\n",
@@ -760,7 +761,13 @@
           "    FROM m2 GROUP BY cy\n",
           "  )\n",
           "SELECT group_concat(rtrim(t),x'0a') as Mandelbrot FROM a;\n",
-        ]}
+        ]},
+        {name: "JSON pretty-print",
+         sql: "select json_pretty(json_object('ex',json('[52,3.14159]')))"
+        },
+        {name: "JSON pretty-print (with tabs)",
+         sql: "select json_pretty(json_object('ex',json('[52,3.14159]')),char(0x09))"
+        }
       ];
       const newOpt = function(lbl,val){
         const o = document.createElement('option');