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

doctests/dt-tdigest.js

@@ -0,0 +1,85 @@
+// EXAMPLE: tdigest_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 tdig_start
+const res1 = await client.tDigest.create('bikes:sales', 100);
+console.log(res1);  // >>> OK
+
+const res2 = await client.tDigest.add('bikes:sales', [21]);
+console.log(res2);  // >>> OK
+
+const res3 = await client.tDigest.add('bikes:sales', [150, 95, 75, 34]);
+console.log(res3);  // >>> OK
+// STEP_END
+
+// REMOVE_START
+assert.equal(res1, 'OK')
+assert.equal(res2, 'OK')
+assert.equal(res3, 'OK')
+// REMOVE_END
+
+// STEP_START tdig_cdf
+const res4 = await client.tDigest.create('racer_ages');
+console.log(res4);  // >>> OK
+
+const res5 = await client.tDigest.add('racer_ages', [
+  45.88, 44.2, 58.03, 19.76, 39.84, 69.28, 50.97, 25.41, 19.27, 85.71, 42.63
+]);
+console.log(res5);  // >>> OK
+
+const res6 = await client.tDigest.rank('racer_ages', [50]);
+console.log(res6);  // >>> [7]
+
+const res7 = await client.tDigest.rank('racer_ages', [50, 40]);
+console.log(res7);  // >>> [7, 4]
+// STEP_END
+
+// REMOVE_START
+assert.equal(res4, 'OK')
+assert.equal(res5, 'OK')
+assert.deepEqual(res6, [7])
+assert.deepEqual(res7, [7, 4])
+// REMOVE_END
+
+// STEP_START tdig_quant
+const res8 = await client.tDigest.quantile('racer_ages', [0.5]);
+console.log(res8);  // >>> [44.2]
+
+const res9 = await client.tDigest.byRank('racer_ages', [4]);
+console.log(res9);  // >>> [42.63]
+// STEP_END
+
+// STEP_START tdig_min
+const res10 = await client.tDigest.min('racer_ages');
+console.log(res10);  // >>> 19.27
+
+const res11 = await client.tDigest.max('racer_ages');
+console.log(res11);  // >>> 85.71
+// STEP_END
+
+// REMOVE_START
+assert.deepEqual(res8, [44.2])
+assert.deepEqual(res9, [42.63])
+assert.equal(res10, 19.27)
+assert.equal(res11, 85.71)
+// REMOVE_END
+
+// STEP_START tdig_reset
+const res12 = await client.tDigest.reset('racer_ages');
+console.log(res12);  // >>> OK
+// STEP_END
+
+// REMOVE_START
+assert.equal(res12, 'OK')
+await client.quit();
+// REMOVE_END