assert-cb

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

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

License

MIT