Update instructions_to_run_generated_code.md

doc/user_guide/instructions_to_run_generated_code.md

@@ -205,11 +205,105 @@ TODO
 
 ## node.js (JavaScript, axios)
 
-TODO
+### 1.Install Node.js:
+Ensure Node.js and npm are installed. Verify by running:
+
+```bash
+node --version
+npm --version
+```
+
+If not, download from Node.js **[Official Website]((https://nodejs.org/en))**.
+
+Initialize a new Node.js project:
+
+```bash
+npm init -y
+```
+
+Install Axios:
+
+```bash
+npm install axios
+```
+
+### 2.Set Up a New Project:
+Create a new project directory:
+
+```bash
+mkdir node-axios-example
+cd node-axios-example
+```
+
+Initialize the project:
+
+```bash
+npm init -y
+```
+
+### 3.Create and Run the Code:
+
+Save the generated code in a file(e.g., `app.js`).
+
+Run the code:
+
+```bash
+node app.js
+```
 
 ## node.js (JavaScript, fetch)
 
-TODO
+### 1. Install Node.js:
+Ensure Node.js and npm are installed. Verify by running:
+
+```bash
+node --version
+npm --version
+```
+
+If not, download from Node.js **[Official Website]((https://nodejs.org/en))**.
+
+Initialize a new Node.js project:
+
+```bash
+npm init -y
+```
+
+If using Node.js 18 or newer, the Fetch API is already built-in.
+
+For older versions, install the `node-fetch` package:
+
+```bash
+npm install node-fetch
+```
+
+### 2. Set Up a New Project:
+Create a project directory:
+
+```bash
+mkdir node-fetch-example
+cd node-fetch-example
+```
+
+Initialize the project:
+
+```bash
+npm init -y
+```
+
+### 3.Create and Run the Code:
+Save the generated code in a file( e.g., `app.js`).
+If using `node-fetch`, add the following line to the top of the file:
+
+```javascript
+const fetch = require('node-fetch');
+```
+
+Run the file:
+
+```bash
+node app.js
+```
 
 ## Java (asynchttpclient)