allow zson output

packages/zed-wasm/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@brimdata/zed-wasm",
-  "version": "0.0.17",
+  "version": "0.0.18",
   "homepage": "https://github.com/brimdata/zed",
   "type": "module",
   "files": [

packages/zed-wasm/src/interface.js

@@ -6,17 +6,22 @@ export function createInterface(go, deps) {
     //   input?: string | File | Blob | ReadableStream | any[],
     //   inputFormat?: LoadFormat,
     //   outputFormat?: 'js' | 'zed',
+
     zq: async (opts) => {
       const result = await go.zq({
         input: deps.getInput(opts.input),
         inputFormat: opts.inputFormat,
         program: opts.program,
-        outputFormat: 'zjson',
+        outputFormat: opts.outputFormat,
       });
 
-      const zed = decode(ndjson.parseLines(result));
-      if (opts.outputFormat === 'zed') return zed;
-      return zed.map((val) => val.toJS());
+      if (opts.decodeAs) {
+        const zed = decode(ndjson.parseLines(result));
+        if (opts.decodeAs === 'zed') return zed;
+        return zed.map((val) => val.toJS());
+      } else {
+        return result;
+      }
     },
 
     parse: (string) => go.parse(string),

packages/zed-wasm/test/browser/zq.test.js

@@ -9,5 +9,5 @@ test('run zq', async ({ page }) => {
   await page.fill('[name=input]', '1 2 3');
   await page.fill('[name=script]', 'this * 10');
   await page.click('button');
-  await expect(page.locator('pre')).toContainText('[10,20,30]');
+  await expect(page.locator('pre')).toContainText('102030');
 });

packages/zed-wasm/test/cjs/parse.test.js

@@ -39,6 +39,8 @@ test('zq works in cjs env', async () => {
   const resp = await wasm.zq({
     input: '1 2 3',
     program: 'this * 10',
+    outputFormat: 'zjson',
+    decodeAs: 'js',
   });
   expect(resp).toEqual([10, 20, 30]);
 });

packages/zed-wasm/test/node/zq.test.js

@@ -12,6 +12,20 @@ test.before(async () => {
 
 test('input is string', async (t) => {
   const input = '1 2 3';
-  const resp = await zq({ input, program: 'this + 1' });
+  const resp = await zq({
+    input,
+    program: 'this + 1',
+    outputFormat: 'zjson',
+    decodeAs: 'js',
+  });
   assert.deepEqual(resp, [2, 3, 4]);
 });
+
+test('output as zson', async (t) => {
+  const input = '1 2 3';
+  const resp = await zq({
+    input,
+    program: 'this + 1',
+  });
+  assert.deepEqual(resp, '2\n3\n4\n');
+});

packages/zed-wasm/test/pages/zq.html

@@ -35,7 +35,7 @@
               input: input,
               program: script,
             });
-            puts(JSON.stringify(result));
+            puts(result);
           } catch (e) {
             puts(JSON.stringify(e, null, 2));
           }