Docsp 14569 mixed data type (#1064)

* attempt to add bluehawked mixed example snippets

* fixed wording

* Update source/examples/generated/node/data-types.codeblock.query-objects-with-mixed-values.js

* Update examples/node/Examples/data-types.js

Co-authored-by: Mohammad Hunan Chughtai <[email protected]>

Author: Mohammad Hunan Chughtai

examples/node/Examples/data-types.js

@@ -34,6 +34,64 @@ const BusinessSchema = {
 };
 // :code-block-end:
 describe("Node.js Data Types", () => {
+  test("should work with Mixed Type", async () => {
+    // :code-block-start: define-mixed-in-schema
+    const DogSchema = {
+      name: "Dog",
+      properties: {
+        name: "string",
+        birthDate: "mixed",
+      },
+    };
+    // :code-block-end:
+
+    const realm = await Realm.open({
+      schema: [DogSchema],
+    });
+
+    // :code-block-start: create-objects-with-mixed-values
+    realm.write(() => {
+      // create a Dog with a birthDate value of type string
+      realm.create("Dog", { name: "Euler", birthDate: "December 25th, 2017" });
+
+      // create a Dog with a birthDate value of type date
+      realm.create("Dog", {
+        name: "Blaise",
+        birthDate: new Date("August 17, 2020"),
+      });
+      // create a Dog with a birthDate value of type int
+      realm.create("Dog", {
+        name: "Euclid",
+        birthDate: 10152021,
+      });
+      // create a Dog with a birthDate value of type null
+      realm.create("Dog", {
+        name: "Pythagoras",
+        birthDate: null,
+      });
+    });
+    // :code-block-end:
+
+    // :code-block-start: query-objects-with-mixed-values
+    // To query for Blaise's birthDate, filter for his name to retrieve the realm object.
+    // Use dot notation to access the birthDate property.
+    let blaiseBirthDate = realm.objects("Dog").filtered(`name = 'Blaise'`)[0]
+      .birthDate;
+    console.log(`Blaise's birth date is ${blaiseBirthDate}`);
+    // :code-block-end:
+    expect(blaiseBirthDate).toEqual(new Date("August 17, 2020"));
+
+    // delete the objects specifically created in this test to keep tests idempotent
+    const Euler = realm.objects("Dog").filtered(`name = 'Euler'`)[0];
+    const Blaise = realm.objects("Dog").filtered(`name = 'Blaise'`)[0];
+    const Euclid = realm.objects("Dog").filtered(`name = 'Euclid'`)[0];
+    const Pythagoras = realm.objects("Dog").filtered(`name = 'Pythagoras'`)[0];
+    realm.write(() => {
+      realm.delete(Euler);
+      realm.delete(Blaise);
+      realm.delete(Euclid);
+      realm.delete(Pythagoras);
+    });
   test("should create and read and delete an embedded object", async () => {
     const realm = await Realm.open({
       schema: [AddressSchema, ContactSchema],

source/examples/generated/node/data-types.codeblock.create-objects-with-mixed-values.js

@@ -0,0 +1,20 @@
+realm.write(() => {
+  // create a Dog with a birthDate value of type string
+  realm.create("Dog", { name: "Euler", birthDate: "December 25th, 2017" });
+
+  // create a Dog with a birthDate value of type date
+  realm.create("Dog", {
+    name: "Blaise",
+    birthDate: new Date("August 17, 2020"),
+  });
+  // create a Dog with a birthDate value of type int
+  realm.create("Dog", {
+    name: "Euclid",
+    birthDate: 10152021,
+  });
+  // create a Dog with a birthDate value of type null
+  realm.create("Dog", {
+    name: "Pythagoras",
+    birthDate: null,
+  });
+});

source/examples/generated/node/data-types.codeblock.define-mixed-in-schema.js

@@ -0,0 +1,7 @@
+const DogSchema = {
+  name: "Dog",
+  properties: {
+    name: "string",
+    birthDate: "mixed",
+  },
+};

source/examples/generated/node/data-types.codeblock.query-objects-with-mixed-values.js

@@ -0,0 +1,4 @@
+// To query for Blaise's birthDate, filter for his name to retrieve the realm object.
+// Use dot notation to access the birthDate property.
+let blaiseBirthDate = realm.objects("Dog").filtered(`name = 'Blaise'`)[0].birthDate;
+console.log(`Blaise's birth date is ${blaiseBirthDate}`);

source/sdk/node/data-types/mixed.txt

@@ -14,4 +14,52 @@ Mixed - Node.js SDK
 .. versionadded:: 10.5.0-beta.1
 
 Overview
---------
+--------
+The mixed data type is a {+realm+} property type that can hold different data types.
+Supported data types include:
+
+- bool
+- int 
+- float 
+- double 
+- string
+- Date 
+- Data
+- UUID
+- Set
+- null
+
+.. note::
+
+   The mixed data type is indexable, but you can't use it as a primary key.
+   Because null is a permitted value, you can't declare a Mixed property as
+   optional.
+
+Realm Object Models
+-------------------
+To :ref:`set a property of your object model
+<node-define-a-realm-object-schema>` as mixed, set the property's type to
+``"mixed"``.
+
+.. literalinclude:: /examples/generated/node/data-types.codeblock.define-mixed-in-schema.js
+    :language: javascript
+
+Create an Object With a Mixed Value
+-----------------------------------
+Create an object with a mixed value by running the :js-sdk:`realm.create()
+<Realm.html#create>` method within a write transaction.
+
+.. literalinclude:: /examples/generated/node/data-types.codeblock.create-objects-with-mixed-values.js
+    :language: javascript
+
+Query for Objects with a Mixed Value
+------------------------------------
+Query for objects with a mixed value by running the
+:js-sdk:`Collection.filtered() <Realm.Collection.html#filtered>` method and
+passing in a :ref:`filter <node-filter-queries>` for a non-mixed field. You can
+then print the value of the mixed property or the entire object itself.
+
+.. literalinclude:: /examples/generated/node/data-types.codeblock.query-objects-with-mixed-values.js
+    :language: javascript
+
+