lazy-req - npm Package Compare versions

Comparing version 1.1.0 to 2.0.0

index.js

 'use strict';
-module.exports = function (fn) {
-	return function (id) {
-		var mod;
+const lazy = (mod, fn, id) => mod === undefined ? fn(id) : mod;
 
+module.exports = fn => {
+	return id => {
+		let mod;
+
 		return function () {
-			if (!arguments.length) {
+			if (arguments.length === 0) {
 				mod = lazy(mod, fn, id);
@@ -12,7 +14,7 @@ return mod;
 
-			var ret = {};
+			const ret = {};
 
-			[].forEach.call(arguments, function (prop) {
+			[].forEach.call(arguments, prop => {
 				Object.defineProperty(ret, prop, {
-					get: function () {
+					get: () => {
 						mod = lazy(mod, fn, id);
@@ -33,6 +35,21 @@ if (typeof mod[prop] === 'function') {
 	};
+};
 
-	function lazy(mod, fn, id) {
-		return mod !== undefined ? mod : fn(id);
-	}
+module.exports.proxy = fn => {
+	return id => {
+		let mod;
+
+		const handler = {
+			get: (target, property) => {
+				mod = lazy(mod, fn, id);
+				return Reflect.get(mod, property);
+			},
+			apply: (target, thisArg, argumentsList) => {
+				mod = lazy(mod, fn, id);
+				return Reflect.apply(mod, thisArg, argumentsList);
+			}
+		};
+
+		return new Proxy(() => {}, handler);
+	};
 };

package.json

 {
   "name": "lazy-req",
-  "version": "1.1.0",
+  "version": "2.0.0",
   "description": "Require modules lazily",
@@ -10,3 +10,3 @@ "license": "MIT",
     "email": "[e-mail]",
-    "url": "http://sindresorhus.com"
+    "url": "sindresorhus.com"
   },
@@ -20,6 +20,6 @@ "contributors": [
   "engines": {
-    "node": ">=0.10.0"
+    "node": ">=4"
   },
   "scripts": {
-    "test": "xo && node test.js"
+    "test": "xo && ava"
   },
@@ -37,8 +37,10 @@ "files": [
     "defer",
-    "deferred"
+    "deferred",
+    "proxy",
+    "proxies"
   ],
   "devDependencies": {
-    "ava": "0.0.4",
+    "ava": "*",
     "xo": "*"
   }
 }

readme.md

@@ -17,22 +17,22 @@ # lazy-req [![Build Status](https://travis-ci.org/sindresorhus/lazy-req.svg?branch=master)](https://travis-ci.org/sindresorhus/lazy-req)
 // pass in `require` or a custom require function
-var lazyReq = require('lazy-req')(require);
-var _ = lazyReq('lodash');
+const lazyReq = require('lazy-req')(require);
+const _ = lazyReq('lodash');
 
-// where you would normally do
+// Where you would normally do
 _.isNumber(2);
 
-// you now instead call it as a function
+// You now instead call it as a function
 _().isNumber(2);
 
-// it's cached on consecutive calls
+// It's cached on consecutive calls
 _().isString('unicorn');
 
-// extract lazy variations of the props you need
-var members = lazyReq('lodash')('isNumber', 'isString');
+// Extract lazy variations of the props you need
+const members = lazyReq('lodash')('isNumber', 'isString');
 
-// useful when using destructuring assignment in ES2015
-const { isNumber, isString } = lazyReq('lodash')('isNumber', 'isString');
+// Useful when using destructuring assignment in ES2015
+const {isNumber, isString} = lazyReq('lodash')('isNumber', 'isString');
 
-// works out of the box for functions and regular properties
-var stuff = lazyReq('./math-lib')('sum', 'PHI');
+// Works out of the box for functions and regular properties
+const stuff = lazyReq('./math-lib')('sum', 'PHI');
 console.log(stuff.sum(1, 2)); // => 3
@@ -42,5 +42,25 @@ console.log(stuff.PHI); // => 1.618033
 
+### Proxy support in Node.js 6 or later
 
+If you use Node.js 6 or later, you can take advantage of ES2015 proxies and don't need to call it as a function.
+
+```js
+const lazyReq = require('lazy-req').proxy(require);
+const _ = lazyReq('lodash');
+
+// No need to call it as a function but still lazily required
+_.isNumber(2);
+```
+
+## Related
+
+- [resolve-from](https://github.com/sindresorhus/resolve-from) - Resolve the path of a module from a given path
+- [req-from](https://github.com/sindresorhus/req-from) - Require a module from a given path
+- [resolve-pkg](https://github.com/sindresorhus/resolve-pkg) - Resolve the path of a package regardless of it having an entry point
+- [lazy-value](https://github.com/sindresorhus/lazy-value) - Create a lazily evaluated value
+- [define-lazy-prop](https://github.com/sindresorhus/define-lazy-prop) - Define a lazily evaluated property on an object
+
+
 ## License
 
-MIT © [Sindre Sorhus](http://sindresorhus.com)
+MIT © [Sindre Sorhus](https://sindresorhus.com)

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Improved metrics

Total package byte prevSize

4705

increased by35.71%

Lines of code

44

increased by46.67%

Number of lines in readme file

65

increased by44.44%

No dependency changes