Node.js & Express.js freeCodeCamp

• What is Node.js?

  Environment to run JavaScript outside the browser
• When was Node.js created?

  In 2009
• What engine is Node.js built on?

  Chrome's V8 JavaScript engine
• Who created Node.js?

  Ryan Dahl
• What is a major benefit of Node.js?

  Large community support
• What language is used for both frontend and backend in Node.js?

  JavaScript
• What are the course requirements?

  Basic HTML, CSS, and JavaScript knowledge
• What is a major difference between Node.js and browser JavaScript?

  No access to browser APIs in Node.js
• What type of applications do Node.js apps consist of?

  Pure logic without graphical interface
• What is not available in Node.js?

  Document object model (DOM)
• What can Node.js access that browser apps cannot?

  File system and operating system info
• How does Node.js handle versioning compared to browser apps?

  Node.js depends on its own version
• What library does Node.js use for modules?

  CommonJS library
• How do you install Node.js?

  Navigate to nodejs.org and pick LTS version
• How can you check if Node.js is installed correctly?

  Type 'node version' in terminal
• What should you do if you encounter installation errors?

  Use a search engine for troubleshooting
• What does LTS stand for in Node.js versions?

  Long Term Support
• What is recommended for production apps?

  Use LTS version of Node.js
• What should you do if your version number is greater than 14?

  Install the current LTS version
• What is the first step to create a Node.js project?

  Create a new folder for the project
• What should you name your Node.js file?

  It can be named anything, e.g., app.js
• What is the advantage of using the integrated terminal in VS Code?

  It points directly to your project folder
• What is the shortcut to open the integrated terminal in VS Code?

  Control and tilde
• What command is used to run a Node.js application?

  node app.js
• What is the purpose of using quotation marks and template strings in Node.js?

  To showcase string formatting options
• What feature does VS Code provide for terminal access?

  Integrated terminal pointing to the folder
• How can you navigate to the terminal command in VS Code?

  Go to view and find terminal command
• What is the command to run a specific file in Node.js?

  node filename.js
• What are global variables in Node.js?

  Variables accessible anywhere in the application
• What is the purpose of the __dirname variable in Node.js?

  It gives the path to the current directory
• What does the require function do in Node.js?

  It is used to import modules
• Why is the process variable useful in Node.js?

  It provides info about the execution environment
• What command is used to log data to the console in Node.js?

  console.log()
• What is the purpose of setInterval in Node.js?

  To execute a function repeatedly at intervals
• How can you stop a running interval in Node.js?

  By using Control and C
• What is the significance of using modules in Node.js?

  To organize code into manageable files
• What is the difference between ES6 modules and CommonJS in Node.js?

  CommonJS uses require, ES6 uses import
• What does every file in Node.js represent?

  Every file is a module
• What is encapsulated code in the context of modules?

  Code that shares only necessary parts
• How do you create a new module in Node.js?

  Create a new file for the module