DOCSP-10341: feedback fixes for indexes (#100)

* DOCSP-10341: feedback fixes for indexes page

Author: Chris Cho

source/code-snippets/indexes/compound.js

@@ -11,20 +11,27 @@ async function run() {
   try {
     await client.connect();
 
-    // begin-ex
-    //
-    // (Connection code omitted for space.)
-    //
-    // Specify the "sample_mflix" database.
-    const mflix = client.db("sample_mflix");
+    // begin-idx
+    const db = client.db("sample_mflix");
+    const movies = db.collection("movies");
 
     // Create an ascending index on the "type" and "genre" fields
     // in the "movies" collection.
-    const result = await mflix
-      .collection("movies")
-      .createIndex({ type: 1, genre: 1 });
-    console.log("Index " + result + " created.");
-    // end-example
+    const result = await movies.createIndex({ type: 1, genre: 1 });
+    console.log(`Index created: ${result}`);
+    // end-idx
+
+    // begin-query
+    const query = { type: "movie", genre: "Drama" };
+    const sort = { type: 1, genre: 1 };
+    const projection = { type: 1, genre: 1 };
+
+    const cursor = movies
+      .find(query)
+      .sort(sort)
+      .project(projection);
+    // end-query
+
   } finally {
     await client.close();
   }

source/code-snippets/indexes/geo.js

@@ -11,20 +11,14 @@ async function run() {
   try {
     await client.connect();
 
-    // begin-ex
-    //
-    // (Connection code omitted for space.)
-    //
-    // Specify the "sample_mflix" database.
-    const mflix = client.db("sample_mflix");
+    // begin-idx
+    const db = client.db("sample_mflix");
+    const movies = db.collection("movies");
 
-    // Create a 2dsphere index on the "location.geo" field in the
-    // "theaters" collection.
-    const result = await mflix
-      .collection("movies")
-      .createIndex({ "location.geo": "2dsphere" });
-    console.log("Index " + result + " created.");
-    // end-ex
+    // Create a 2dsphere index on the "location.geo" field in the "theaters" collection.
+    const result = await movies.createIndex({ "location.geo": "2dsphere" });
+    console.log(`Index created: ${result}`);
+    // end-idx
   } finally {
     await client.close();
   }

source/code-snippets/indexes/multikey.js

@@ -11,19 +11,26 @@ async function run() {
   try {
     await client.connect();
 
-    // begin-ex
-    //
-    // (Connection code omitted for space.)
-    //
-    // Specify the "sample_mflix" database.
-    const mflix = client.db("sample_mflix");
+    // begin-idx
+    const db = client.db("sample_mflix");
+    const movies = db.collection("movies");
 
     // Create a multikey index on the "cast" array field
     // in the "movies" collection.
-    const result = await mflix.collection("movies").createIndex({ cast: 1 });
-    console.log("Index " + result + " created.");
+    const result = await movies.createIndex({ cast: 1 });
+    console.log(`Index created: ${result}`);
+    // end-idx
 
-    // end-ex
+    // begin-query
+    const query = { cast: "Burt Reynolds" };
+    const sort = { cast: 1, genre: 1 };
+    const projection = { cast: 1 };
+
+    const cursor = movies
+      .find(query)
+      .sort(sort)
+      .project(projection);
+    // end-query
   } finally {
     await client.close();
   }

source/code-snippets/indexes/single-field.js

@@ -11,19 +11,26 @@ async function run() {
   try {
     await client.connect();
 
-    // begin-ex
-    //
-    // (Connection code omitted for space.)
-    //
-    // Specify the "sample_mflix" database.
-    const mflix = client.db("sample_mflix");
+    // begin-idx
+    const db = client.db("sample_mflix");
+    const movies = db.collection("movies");
 
     // Create an ascending index on the "title" field in the
     // "movies" collection.
-    const result = await mflix.collection("movies").createIndex({ title: 1 });
-    console.log("Index " + result + " created.");
+    const result = await movies.createIndex({ title: 1 });
+    console.log(`Index created: ${result}`);
+    // end-idx
 
-    // end-ex
+    // begin-query
+    const query = { title: "Batman" }
+    const sort = { title: 1 };
+    const projection = { title: 1 };
+
+    const cursor = movies
+      .find(query)
+      .sort(sort)
+      .project(projection);
+    // end-query
   } finally {
     await client.close();
   }

source/code-snippets/indexes/text.js

@@ -11,20 +11,24 @@ async function run() {
   try {
     await client.connect();
 
-    // begin-ex
-    //
-    // (Connection code omitted for space.)
-    //
-    // Specify the "sample_mflix" database.
-    const mflix = client.db("sample_mflix");
+    // begin-idx
+    const db = client.db("sample_mflix");
+    const movies = db.collection("movies");
 
     // Create a text index on the "fullplot" field in the
     // "movies" collection.
-    const result = await mflix
-      .collection("movies")
-      .createIndex({ fullplot: "text" }, { default_language: "english" });
-    console.log("Index " + result + " created.");
-    // end-ex
+    const result = await movies.createIndex({ fullplot: "text" }, { default_language: "english" });
+    console.log(`Index created: ${result}`);
+    // end-idx
+
+    // begin-query
+    const query = { $text: { $search: "java coffee shop" } };
+    const projection = { fullplot: 1 };
+    const cursor = movies
+      .find(query)
+      .projection(projection);
+    // end-query
+
   } finally {
     await client.close();
   }

source/code-snippets/indexes/unique.js

@@ -11,21 +11,14 @@ async function run() {
   try {
     await client.connect();
 
-    // begin-ex
-    //
-    // (Connection code omitted for space.)
-    //
-    // Specify the "sample_mflix" database.
-    const mflix = client.db("sample_mflix");
+    // begin-idx
+    const db = client.db("sample_mflix");
+    const movies = db.collection("movies");
 
-    // Create an ascending unique index on the "theaterId" field in the
-    // "theaters" collection.
-    const result = await mflix
-      .collection("theaters")
-      .createIndex({ theaterId: 1 }, { unique: true });
-    console.log("Index " + result + " created.");
-
-    // end-ex
+    // Create a unique index on the "theaterId" field in the "theaters" collection.
+    const result = await movies.createIndex({ theaterId: 1 }, { unique: true });
+    console.log(`Index created: ${result}`);
+    // end-idx
   } finally {
     await client.close();
   }