is-arrow-function - npm Package Compare versions

Comparing version 1.0.2 to 2.0.0

index.js

@@ -0,10 +1,16 @@
+'use strict';
+
 var toStr = Object.prototype.toString;
 var fnToStr = Function.prototype.toString;
-var isFnRegex = /^\s*function/;
+var isNonArrowFnRegex = /^\s*function/;
+var isArrowFnWithParensRegex = /^\([^\)]*\) *=>/;
+var isArrowFnWithoutParensRegex = /^[^=]*=>/;
 
 module.exports = function isArrowFunction(fn) {
-	"use strict";
-	var fnStr = toStr.call(fn);
-	return fnStr === '[object Function]' && !isFnRegex.test(fnToStr.call(fn));
+	var typeStr = toStr.call(fn);
+	var fnStr = typeStr === '[object Function]' ? fnToStr.call(fn) : '';
+	return fnStr.length > 0
+		&& !isNonArrowFnRegex.test(fnStr)
+		&& (isArrowFnWithParensRegex.test(fnStr) || isArrowFnWithoutParensRegex.test(fnStr));
 };
 

package.json

 {
 	"name": "is-arrow-function",
-	"version": "1.0.2",
+	"version": "2.0.0",
 	"description": "Determine if a function is an ES6 arrow function or not.",
 	"main": "index.js",
 	"scripts": {
-		"test": "node --harmony test/index.js",
+		"test": "npm run lint && node --harmony test/index.js",
 		"coverage": "covert test/index.js",
-		"coverage-quiet": "covert test/index.js --quiet"
+		"coverage-quiet": "covert test/index.js --quiet",
+		"lint": "jscs *.js */*.js"
 	},
@@ -31,4 +32,5 @@ "repository": {
 	"devDependencies": {
-		"tape": "~2.14.0",
-		"covert": "~0.4.0"
+		"tape": "~3.0.3",
+		"covert": "1.0.0",
+		"jscs": "~1.8.1"
 	},
@@ -35,0 +37,0 @@ "testling": {

README.md

@@ -1,8 +0,10 @@
-#is-arrow-function <sup>[![Version Badge][2]][1]</sup>
+#is-arrow-function <sup>[![Version Badge][npm-version-svg]][npm-url]</sup>
 
-[![Build Status][3]][4] [![dependency status][5]][6] [![dev dependency status][7]][8]
+[![Build Status][travis-svg]][travis-url]
+[![dependency status][deps-svg]][deps-url]
+[![dev dependency status][dev-deps-svg]][dev-deps-url]
 
-[![npm badge][11]][1]
+[![npm badge][npm-badge-png]][npm-url]
 
-[![browser support][9]][10]
+[![browser support][testling-png]][testling-url]
 
@@ -20,2 +22,5 @@ npm module to determine if a function is an ES6 arrow function or not.
 assert(isArrowFunction((a, b) => a * b));
+assert(isArrowFunction(() => 42));
+assert(isArrowFunction(x => x * x));
+assert(isArrowFunction(x => () => x * x));
 ```
@@ -26,13 +31,13 @@
 
-[1]: https://npmjs.org/package/is-arrow-function
-[2]: http://vb.teelaun.ch/ljharb/node-is-arrow-function.svg
-[3]: https://travis-ci.org/ljharb/node-is-arrow-function.png
-[4]: https://travis-ci.org/ljharb/node-is-arrow-function
-[5]: https://david-dm.org/ljharb/node-is-arrow-function.png
-[6]: https://david-dm.org/ljharb/node-is-arrow-function
-[7]: https://david-dm.org/ljharb/node-is-arrow-function/dev-status.png
-[8]: https://david-dm.org/ljharb/node-is-arrow-function#info=devDependencies
-[9]: https://ci.testling.com/ljharb/node-is-arrow-function.png
-[10]: https://ci.testling.com/ljharb/node-is-arrow-function
-[11]: https://nodei.co/npm/is-arrow-function.png?downloads=true&stars=true
+[npm-url]: https://npmjs.org/package/is-arrow-function
+[npm-version-svg]: http://vb.teelaun.ch/ljharb/node-is-arrow-function.svg
+[travis-svg]: https://travis-ci.org/ljharb/node-is-arrow-function.svg
+[travis-url]: https://travis-ci.org/ljharb/node-is-arrow-function
+[deps-svg]: https://david-dm.org/ljharb/node-is-arrow-function.svg
+[deps-url]: https://david-dm.org/ljharb/node-is-arrow-function
+[dev-deps-svg]: https://david-dm.org/ljharb/node-is-arrow-function/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/node-is-arrow-function#info=devDependencies
+[testling-png]: https://ci.testling.com/ljharb/node-is-arrow-function.png
+[testling-url]: https://ci.testling.com/ljharb/node-is-arrow-function
+[npm-badge-png]: https://nodei.co/npm/is-arrow-function.png?downloads=true&stars=true
 

test/index.js

@@ -1,6 +0,6 @@
-"use strict";
+'use strict';
 
 var test = require('tape');
 var isArrowFunction = require('../index');
-var arrowFunc = require('../test/make-arrow-fn');
+var arrowFuncs = require('../test/make-arrow-fns');
 
@@ -60,4 +60,6 @@ var forEach = function (arr, func) {
 test('returns true for arrow functions', function (t) {
-	if (arrowFunc) {
-		t.ok(isArrowFunction(arrowFunc), 'arrow function is arrow function');
+	if (arrowFuncs.length > 0) {
+		arrowFuncs.forEach(function (arrowFunc) {
+			t.ok(isArrowFunction(arrowFunc), 'arrow function ' + arrowFunc  + ' is arrow function');
+		});
 	} else {
@@ -64,0 +66,0 @@ t.skip('arrow function is arrow function - this environment does not support ES6 arrow functions. Please run `node --harmony`, or use a supporting browser.');

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Improved metrics

Total package byte prevSize

9040

increased by45.95%

Number of package files

10

increased by11.11%

Lines of code

124

increased by74.65%

Number of medium maintenance alerts

0

decreased by-100%

Number of lines in readme file

42

increased by13.51%

Worsened metrics

Dev dependency count

3

increased by50%

No dependency changes