JavaScript (Node.js) : app.set('port', port); ^ TypeError: app.set is not a function - Stack Overflow

JavaScript (Node.js) : app.set('port', port); ^ TypeError: app.set is not a function - Stack Overflow javascript - app.set('port', port) 'TypeError: undefined is not a function'. Beginner, need ideas - Stack Overflow Environment variables in Node.js. The Right way! Environment variables in Node.js. The Right way! - DEV Community [nodemon] app crashed - waiting for file changes before starting... - Google Search mevn-stack/package.json at master · aturingmachine/mevn-stack javascript - How to go back 1 folder level with __dirname? - Stack Overflow javascript - How to go back 1 folder level with __dirname? - Stack Overflow How to comment multiple lines in Visual Studio Code? - Stack Overflow html - Why am I seeing a 404 (Not Found) error failed to load favicon.ico when not using this? - Stack Overflow node.js - How to redirect 404 errors to a page in ExpressJS? - Stack Overflow Solved! Mongoose Unique Index Not Working - DEV Community 👩‍💻👨‍💻 Node.js + Express - How to log the request body and response body - Stack Overflow