Nodejs: how to clone an object

by

For utilities and classes where there is no need to squeeze every drop of performance, I often cheat and just use JSON to perform a deep copy:

function clone(a) {
   return JSON.parse(JSON.stringify(a));
}

This isn’t the only answer or the most elegant answer; all of the other answers should be considered for production bottlenecks. However, this is a quick and dirty solution, quite effective, and useful in most situations where I would clone a simple hash of properties.

More Related Contents:

  1. Does normal javascript works on node – webkit or not? [closed]
  2. Mongoose and multiple database in single node.js project
  3. MongoDB, remove object from array
  4. Const in JavaScript: when to use it and is it necessary?
  5. ‘this’ different between REPL and script
  6. JavaScript Time Zone is wrong for past Daylight Saving Time transition rules
  7. Execute an exe file using node.js
  8. Puppeteer log inside page.evaluate
  9. How to split string with newline (‘\n’) in Node?
  10. How do I read the contents of a Node.js stream into a string variable?
  11. How to make Puppeteer work with a ReactJS application on the client-side
  12. Configuring HTTPS for Express and Nginx
  13. Running an Express server middleware alongside Nuxt
  14. Node.js: Count the number of lines in a file
  15. How to request the Garbage Collector in node.js to run?
  16. How to check whether a script is running under Node.js?
  17. dotenv file is not loading environment variables
  18. How to list npm user-installed packages
  19. How to run Node.js app with ES6 features enabled?
  20. Get all keys of a deep object in Javascript
  21. Object.keys() returns unexpected keys on MongoDB object from collection [duplicate]
  22. Unable to send numbers using res.send() using express with node
  23. ReactJS server-side rendering vs client-side rendering
  24. Including JavaScript class definition from another file in Node.js
  25. Why and when to use Node.js? [duplicate]
  26. Can I use a Gulp task with multiple sources and multiple destinations?
  27. Heroku: “No default language could be detected for this app” error thrown for node app
  28. How to run my node.js project on android?
  29. Firebase-Admin, importing it to react application throws Module not found error
  30. Can’t get rid of header X-Powered-By:Express

Leave a Comment