async-handlers - npm Package Compare versions

Comparing version 1.2.1 to 1.3.0

lib/index.js

 // Generated by CoffeeScript 1.9.3
 (function() {
   module.exports = {
+    constant: require('./constant'),
     exitOnError: require('./exit_on_error'),
@@ -5,0 +6,0 @@ extract: require('./extract'),

package.json

 {
   "name": "async-handlers",
-  "version": "1.2.1",
+  "version": "1.3.0",
   "description": "Function factories for performing synchronous operations after asynchronous operations",
@@ -5,0 +5,0 @@ "main": "./lib/index.js",

README.md

 # Asynchronous handlers
 
-Function factories for performing synchronous operations after asynchronous operations
+Function factories for performing synchronous operations after asynchronous operations.
 
-
-#### transform(fn, callback)
-
-Returns a function `(err, result)` that can be passed to an asynchronous function
-that will pass the error through or pass `(null, fn(result))`
-
 ```js
@@ -32,5 +26,15 @@ f1 = function (callback) {
 
+## Methods
+
+#### constant(value, callback)
+
+Returns a function with the signature `(err)`.
+When called with an error, passes it to the callback.
+Otherwise executes callback with `(null, value)`.
+
+
 #### exitOnError
 
-A function that when called with an error, prints the error in red to `stderr` and exits with status 1.
+Returns a function with the signature `(err)`.
+When called with an error, prints the error in red to `stderr` and exits with status 1.
 Otherwise does nothing.
@@ -41,3 +45,21 @@
 
-Returns a function `(err, result)` that can be passed to an asynchronous function
-that will pass the error through or pass `(null, result[key])`
+Returns a function with the signature `(err, result)`.
+When called with an error, passes it to the callback.
+Otherwise executes callback with `(null, result[key])`.
+
+
+#### prependToError(prefix, callback)
+
+Returns a function with the signature `(err, args...)`.
+When error is a string, prepends prefix to it if and passes it to the callback.
+When error is an object with a message property, prepends prefix to its message and passes it to the callback.
+Otherwise passes all arguments to the callback.
+
+_Note: the prefix will only be prepended if not already present._
+
+
+#### transform(fn, callback)
+
+Returns a function with the signature `(err, result)`.
+When called with an error, passes it to the callback.
+Otherwise executes callback with `(null, fn(result))`.

No alert changes

Improved metrics

Total package byte prevSize

5091

increased by24.87%

Number of package files

9

increased by12.5%

Lines of code

97

increased by16.87%

Number of lines in readme file

64

increased by52.38%

No dependency changes