DOC-3933: final 8 tabbed code examples (#2784)

doctests/dt-hll.js

@@ -0,0 +1,38 @@
+// EXAMPLE: hll_tutorial
+// HIDE_START
+import assert from 'assert';
+import { createClient } from 'redis';
+
+const client = createClient();
+await client.connect();
+// HIDE_END
+
+// REMOVE_START
+await client.flushDb();
+// REMOVE_END
+
+// STEP_START pfadd
+const res1 = await client.pfAdd('bikes', ['Hyperion', 'Deimos', 'Phoebe', 'Quaoar']);
+console.log(res1);  // >>> true
+
+const res2 = await client.pfCount('bikes');
+console.log(res2);  // >>> 4
+
+const res3 = await client.pfAdd('commuter_bikes', ['Salacia', 'Mimas', 'Quaoar']);
+console.log(res3);  // >>> true
+
+const res4 = await client.pfMerge('all_bikes', ['bikes', 'commuter_bikes']);
+console.log(res4);  // >>> OK
+
+const res5 = await client.pfCount('all_bikes');
+console.log(res5);  // >>> 6
+// STEP_END
+
+// REMOVE_START
+assert.equal(res1, true)
+assert.equal(res2, 4)
+assert.equal(res3, true)
+assert.equal(res4, 'OK')
+assert.equal(res5, 6)
+await client.quit();
+// REMOVE_END