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The Intl.NumberFormat.prototype property represents the prototype object for the Intl.NumberFormat constructor.

Property attributes of Intl.NumberFormat.prototype
Writable no
Enumerable no
Configurable no


See NumberFormat for a description of Intl.NumberFormat instances.

Intl.NumberFormat instances inherit from Intl.NumberFormat.prototype. Modifications to the prototype object are inherited by all Intl.NumberFormat instances.


A reference to Intl.NumberFormat.
Getter; returns a function that formats a number according to the locale and formatting options of this NumberFormat object.


Returns a new object with properties reflecting the locale and collation options computed during initialization of the object.


Specification Status Comment
ECMAScript Internationalization API 1.0 (ECMA-402)
The definition of 'Intl.NumberFormat.prototype' in that specification.
Standard Initial definition.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 24 29 (29) 11 15 Not supported
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
Basic support Not supported 26 Not supported Not supported Not supported Not supported

See also

Document Tags and Contributors

Contributors to this page: fscholz, Mingun, Sheppy, Norbert
Last updated by: fscholz,