get-fn-name

get-fn-name

Get function name with strictness and correctness in mind. Also works for arrow functions and getting correct name of bounded functions. Powered by fn-name.

Install

npm i get-fn-name --save

Usage

For more use-cases see the tests

const getFnName = require('get-fn-name')

getFnName

Trying to get the name of val function.

Params

• val {Function}: Regular or arrow (es2015/es6, also know as fat arrow) function.
• returns {String|null}: The name of function or null otherwise.

Example

var name = require('get-fn-name')

console.log(name(function () { return 1 })) // => null
console.log(name(function named () { return 2 })) // => 'named'

// arrows
console.log(name(() => 3)) // => null
console.log(name(() => { return 4 })) // => null
console.log(name((a, b, c) => a + b + c)) // => null
console.log(name((a, b) => { return a + b })) // => null

Related

• bind-context: Bind context to a function and preserves her name. Can be… more | homepage
• fn-name: Get the name of a named function | homepage
• get-comments: Extract javascript comments on per character basis. Comment object compatible with… more | homepage
• get-installed-path: Get the installation path of the given package if it is… more | homepage
• global-modules: The directory used by npm for globally installed npm modules. | homepage
• global-prefix: Get the npm global path prefix. | homepage
• parse-function: Parse a function, arrow function or string to object with name,… more | homepage

Contributing

Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.
But before doing anything, please read the CONTRIBUTING.md guidelines.

Charlike Make Reagent

Changelog

1.0.0 - 2016-03-03

• return null if not found, allows user to have more control
• remove codeclimate.yml
• allow failures on 0.12 and 0.10 - bounded function name is always anonymous