https://github.com/thlorenz/assert-cb

Assert that calls a function with an error instead of throwing it if the assert fails.
https://github.com/thlorenz/assert-cb

Last synced: 13 days ago
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Assert that calls a function with an error instead of throwing it if the assert fails.

• Host: GitHub
• URL: https://github.com/thlorenz/assert-cb
• Owner: thlorenz
• License: mit
• Created: 2014-11-04T08:41:56.000Z (about 10 years ago)
• Default Branch: master
• Last Pushed: 2014-11-04T09:33:30.000Z (about 10 years ago)
• Last Synced: 2024-12-10T08:26:54.293Z (about 1 month ago)
• Language: JavaScript
• Homepage:
• Size: 137 KB
• Stars: 2
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# assert-cb [![build status](https://secure.travis-ci.org/thlorenz/assert-cb.png)](http://travis-ci.org/thlorenz/assert-cb)

Assert that calls a function with an error instead of throwing it if the assert fails.

 ```js

var assert = require('assert-cb')

 

function doStuff(opts, cb) {

  if (!assert(opts.day, 'need to provide day', cb)) return;

  if (!assert(opts.hour, 'need to provide hour', cb)) return;

  

  // determine result

  [..]

  cb(null, res);

}

 ```

 

## Installation

    npm install assert-cb



















assert-cb(condition, msg, cb) → {boolean}









Assert that calls the callback if the given condition is false.

Passes the given condition through to the caller to allow branching depending on its value.



Parameters:


Name

Type

Description

condition

boolean

if false callback is invoked with an error


msg

string

the error message


cb

function

invoked only if the condition is false




Source:





index.js

, 

lineno 7







Returns:



the given condition







Type





boolean











*generated with [docme](https://github.com/thlorenz/docme)*



## License

MIT