is-empty-function

Checks the given function (or fn.toString()) is with empty body - dont have body.

Install

npm i is-empty-function --save
npm test

API

For more use-cases see the tests

isEmptyFunction

Check given function have empty body or not, and returns true or false.

• [fn] {Function|String} passed to parse-function
• return {Boolean}

Example:

var isEmptyFunction = require('is-empty-function')

var fixture = 'function() {};'
isEmptyFunction(fixture)
//=> true

var fixture = function named() {}
isEmptyFunction(fixture)
//=> true

var fixture = function() { return true }
isEmptyFunction(fixture)
//=> false

var fixture = function named() { return true }
isEmptyFunction(fixture)
//=> false

var fixture = "function codeCov() {__cov_Ejgcx$XN18CSfmeWn$f7vQ.f['2']++;};"
isEmptyFunction(fixture)
//=> true

Related

• cleanup-coverage-code: Cleanup ugly code added by code coverage tools during the test process. Like this one __cov_Ejgcx$XN18CSfmeWn$f7vQ.f['2']++;.
• coverage-code-regex: Regular expression (regex) for matching ugly code that coverage tools add during the test process. Like this one __cov_Ejgcx$XN18CSfmeWn$f7vQ.f['2']++;
• function-regex: Function regex. Regular expression for matching function parts. Expose match groups for function name, arguments and function body.
• hybridify: Building hybrid APIs. You can use both callback and promise in same time. Like asyncFn(name, cb).then().catch()
• parse-function: Parse a given function or string (fn.toString()) to object with name, params, parameters, args, arguments and body properties.

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.

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