derf - npm Package Compare versions

Comparing version 2.0.1 to 2.1.0

lib/index.js

@@ -6,3 +6,3 @@ 'use strict';
 });
-exports.middleware = exports.callback = exports.promise = exports.sync = undefined;
+exports.middleware = exports.callback = exports.promise = exports.sync = exports.isWrapped = undefined;
 
@@ -36,2 +36,3 @@ var _debug = require('debug');
 var debug = (0, _debug2.default)('derf');
+var DERFED = Symbol('derfed');
 
@@ -86,6 +87,9 @@ function hrToNano(hr) {
 
+    // mimic original function because the name and arity might matter
     var wrappedFn = handler(fn, print);
+    (0, _mimicFn2.default)(wrappedFn, fn);
 
-    // because the name and arity might matter
-    (0, _mimicFn2.default)(wrappedFn, fn);
+    // mark it with a symbol so it's possible to tell the difference
+    wrappedFn[DERFED] = true;
+
     return wrappedFn;
@@ -95,2 +99,6 @@ };
 
+var isWrapped = exports.isWrapped = function isWrapped(fn) {
+  return !!fn && !!fn[DERFED];
+};
+
 /**
@@ -97,0 +105,0 @@ * Wrap a synchronous function

package.json

 {
   "name": "derf",
-  "version": "2.0.1",
+  "version": "2.1.0",
   "description": "A javascript performance debugger.",
@@ -5,0 +5,0 @@ "main": "lib/index.js",

README.md

@@ -92,3 +92,6 @@ # derf
 
+#### `derf.isWrapped(fn) -> boolean`
+Returns true if a given function has already been wrapped by derf.
 
+
 ### Custom Logging
@@ -95,0 +98,0 @@ You can pass in a function as the last argument of each derf wrapper to customize what is logged. The function must return a string and is passed the following arguments:

No alert changes

Improved metrics

Total package byte prevSize

14299

2.7%

Lines of code

212

2.91%

Number of lines in readme file

128

2.4%

No dependency changes