Extending core types without modifying prototype

by

2 years later: mutating anything in global scope is a terrible idea

Original:

There being something “wrong” with extending native prototypes is FUD in ES5 browsers.

Object.defineProperty(String.prototype, "my_method", {
  value: function _my_method() { ... },
  configurable: true,
  enumerable: false,
  writeable: true
});

However if you have to support ES3 browsers then there are problems with people using for ... in loops on strings.

My opinion is that you can change native prototypes and should stop using any poorly written code that breaks

More Related Contents:

  1. What are the nuances of scope prototypal / prototypical inheritance in AngularJS?
  2. Why is extending native objects a bad practice?
  3. __proto__ VS. prototype in JavaScript
  4. Crockford’s Prototypal inheritance – Issues with nested objects
  5. Why use Object.prototype.hasOwnProperty.call(myObj, prop) instead of myObj.hasOwnProperty(prop)?
  6. Properties of Javascript function objects
  7. Grasping prototypical Inheritance through pseudoclassical instantiation (JavaScript)
  8. Good Example of JavaScript’s Prototype-Based Inheritance
  9. How to access object prototype in javascript?
  10. Performing inheritance in JavaScript
  11. Object.defineProperty in ES5?
  12. Node.js / Express.js – How to override/intercept res.render function?
  13. Is John Resig’s Javascript inheritance snippet deprecated?
  14. Check if a constructor inherits another in ES6
  15. prototypal inheritance concept in javascript as a prototype based language
  16. Async function returning promise, instead of value
  17. In what situations would AJAX long/short polling be preferred over HTML5 WebSockets?
  18. Document.write clears page
  19. Javascript/DOM: How to remove all event listeners of a DOM object?
  20. HTML button to NOT submit form
  21. Submit multiple forms with one submit button
  22. Is there a JavaScript function that can pad a string to get to a determined length?
  23. Jquery: change event to input file on IE
  24. Limiting number of lines in textarea
  25. ScrollIntoView() causing the whole page to move
  26. Devtools doesn’t show console or requests for extension popup? [duplicate]
  27. Programmatically change Redux-Form Field value
  28. how to get audio.duration value by a function
  29. Copy Current Webpage Into a New Window
  30. Uncaught SyntaxError: Failed to execute ‘querySelector’ on ‘Document’

Leave a Comment