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Global v0.4.4
Type Definitions
callback(erropt,
nullable, dataopt, nullable) > {void}
Microform uses
the error-first callback pattern, as commonly used in Node.js.
If an error occurs, it is
returned by the first
err
argument of the callback.
If no error occurs, err
has a null value and any return
data is provided in the second argument.Parameters
Name | Type | Attributes | Description |
|---|---|---|---|
err | MicroformError (see "Class: MicroformError v0.4.4") | <optional> <nullable> | An Object detailing occurred errors, otherwise null. |
data | * | <optional> <nullable> | In success scenarios, this is whatever data has been returned
by the asynchronous function call, if any. |
Returns
Type: void
Examples
The
following example shows how to make use of this style of error handling
in your code:
foo(function (err, data) { // check for and handle any errors if (err) throw err; // otherwise use the data returned console.log(data); });