ode may get type errors that a trivial conversion will resolve.
</p>

<h3 id="error">The error type</h3>

<p>
Go 1 introduces a new built-in type, <code>error</code>, which has the following definition:
</p>

<pre>
    type error interface {
        Error() string
    }
</pre>

<p>
Since the consequences of this type are all in the package library,
it is discussed <a href="#errors">below</a>.
</p>

<h3 id="delete">Deleting from maps</h3>

<p>
In the old language, to delete the entry with key <code>k</code> 