function.prototype.name (1.1.8)
Published 2026-02-24 13:57:08 +00:00 by atheaadmin
Installation
registry=npm install function.prototype.name@1.1.8"function.prototype.name": "1.1.8"About this package
function.prototype.name 
An ES2015 spec-compliant Function.prototype.name shim. Invoke its "shim" method to shim Function.prototype.name if it is unavailable.
Note: Function#name requires a true ES5 environment - specifically, one with ES5 getters.
This package implements the es-shim API interface. It works in an ES5-supported environment and complies with the spec.
Most common usage:
Example
var functionName = require('function.prototype.name');
var assert = require('assert');
assert.equal(functionName(function foo() {}), 'foo');
functionName.shim();
assert.equal(function foo() {}.name, 'foo');
Supported engines
Automatically tested in every minor version of node.
Manually tested in:
- Safari: v4 - v15 (4, 5, 5.1, 6.0.5, 6.2, 7.1, 8, 9.1.3, 10.1.2, 11.1.2, 12.1, 13.1.2, 14.1.2, 15.3, 15.6.1)
- Chrome: v15 - v81, v83 - v106(every integer version)
- Note: This includes Edge v80+ and Opera v15+, which matches Chrome
- Firefox: v3, v3.6, v4 - v105 (every integer version)
- Note: in v42 - v63,
Function.prototype.toStringthrows on HTML element constructors, or a Proxy to a function - Note: in v20 - v35, HTML element constructors are not callable, despite having typeof
function
- Note: in v42 - v63,
- IE: v6 - v11(every integer version
- Opera: v11.1, v11.5, v11.6, v12.0, v12.1, v12.14, v12.15, v12.16, v15+ v15+ matches Chrome
Tests
Simply clone the repo, npm install, and run npm test
Dependencies
Dependencies
| ID | Version |
|---|---|
| call-bind | ^1.0.8 |
| call-bound | ^1.0.3 |
| define-properties | ^1.2.1 |
| functions-have-names | ^1.2.3 |
| hasown | ^2.0.2 |
| is-callable | ^1.2.7 |
Development Dependencies
| ID | Version |
|---|---|
| @es-shims/api | ^2.5.1 |
| @ljharb/eslint-config | ^21.1.1 |
| auto-changelog | ^2.5.0 |
| eclint | ^2.8.1 |
| encoding | ^0.1.13 |
| eslint | =8.8.0 |
| for-each | ^0.3.3 |
| has-strict-mode | ^1.0.1 |
| in-publish | ^2.0.1 |
| make-arrow-function | ^1.2.0 |
| make-async-function | ^1.0.0 |
| make-generator-function | ^2.0.0 |
| npmignore | ^0.3.1 |
| nyc | ^10.3.2 |
| safe-publish-latest | ^2.0.0 |
| tape | ^5.9.0 |
| uglify-register | ^1.0.1 |
Keywords
Function.prototype.name
function
name
ES6
ES2015
shim
polyfill
es-shim API
