Added/updated snippets for docs (#2318)

docs/doc_examples/ad57ccba0a060da4f5313692fa26a235.asciidoc

@@ -0,0 +1,72 @@
+// This file is autogenerated, DO NOT EDIT
+// Use `node scripts/generate-docs-examples.js` to generate the docs examples
+
+[source, js]
+----
+const response = await client.indices.create({
+  index: "my-index-000001",
+  mappings: {
+    properties: {
+      date: {
+        type: "date_nanos",
+      },
+    },
+  },
+});
+console.log(response);
+
+const response1 = await client.bulk({
+  index: "my-index-000001",
+  refresh: "true",
+  operations: [
+    {
+      index: {
+        _id: "1",
+      },
+    },
+    {
+      date: "2015-01-01",
+    },
+    {
+      index: {
+        _id: "2",
+      },
+    },
+    {
+      date: "2015-01-01T12:10:30.123456789Z",
+    },
+    {
+      index: {
+        _id: "3",
+      },
+    },
+    {
+      date: 1420070400000,
+    },
+  ],
+});
+console.log(response1);
+
+const response2 = await client.search({
+  index: "my-index-000001",
+  sort: {
+    date: "asc",
+  },
+  runtime_mappings: {
+    date_has_nanos: {
+      type: "boolean",
+      script: "emit(doc['date'].value.nano != 0)",
+    },
+  },
+  fields: [
+    {
+      field: "date",
+      format: "strict_date_optional_time_nanos",
+    },
+    {
+      field: "date_has_nanos",
+    },
+  ],
+});
+console.log(response2);
+----