What is the difference between native objects and host objects?

by

Both terms are defined in the ECMAScript specification:

native object

object in an ECMAScript implementation whose semantics are fully
defined by this specification rather than by the host environment.

NOTE Standard native objects are defined in this specification. Some
native objects are built-in; others may be constructed during the
course of execution of an ECMAScript program.

Source: http://es5.github.com/#x4.3.6

host object

object supplied by the host environment to complete the
execution environment of ECMAScript.

NOTE Any object that is not native is a host object.

Source: http://es5.github.com/#x4.3.8

A few examples:

Native objects: Object (constructor), Date, Math, parseInt, eval, string methods like indexOf and replace, array methods, …

Host objects (assuming browser environment): window, document, location, history, XMLHttpRequest, setTimeout, getElementsByTagName, querySelectorAll, …

More Related Contents:

  1. How to skip the zero value in an array of objects? [duplicate]
  2. How do I correctly clone a JavaScript object?
  3. How can I check if an object is an array? [duplicate]
  4. Is Chrome’s JavaScript console lazy about evaluating objects?
  5. From an array of objects, extract value of a property as array
  6. __proto__ VS. prototype in JavaScript
  7. How to get all properties values of a JavaScript Object (without knowing the keys)?
  8. How can I display a JavaScript object?
  9. Organize prototype javascript while perserving object reference and inheritance
  10. What are the differences between JSON and JavaScript object? [duplicate]
  11. Remove property for all objects in array
  12. Sum of array object property values in new array of objects in Javascript [duplicate]
  13. Getting the first index of an object
  14. Create an empty object in JavaScript with {} or new Object()?
  15. How to find duplicate values in a JavaScript array of objects, and output only unique values?
  16. What’s the difference between “{}” and “[]” while declaring a JavaScript array?
  17. Get the value of an object with an unknown single key in JS
  18. Maps vs Objects in ES6, When to use?
  19. Encoding Javascript Object to Json string
  20. Returning only certain properties from an array of objects in Javascript [duplicate]
  21. Elegant way to copy only a part of an object [duplicate]
  22. Why can’t I set a JavaScript function’s name property?
  23. Using JavaScript what’s the quickest way to recursively remove properties and values from an object?
  24. Is this a good way to clone an object in ES6?
  25. JavaScript error: “is not a function”
  26. How to convert array of key–value objects to array of objects with a single property?
  27. What’s the JavaScript’s Object.prototype behavior?
  28. JavaScript/JSON: Get unknown property of an object
  29. Flatten a javascript object to pass as querystring
  30. Javascript reflection: Get nested objects path

Leave a Comment