Does lodash have a one-line method for calling a function if it exists? : <p>Given I have this code:</p>

<pre><code>if (_.isFunction(this.doSomething)) {
    this.doSomething();
}
</code></pre>

<p>Whereby loadingComplete is a directive attribute passed in from a parent controller that may not always be provided, is there a cleaner one-line way to call the method if it exists, without repeating the method name?</p>

<p>Something like:</p>

<pre><code>_.call(this, 'doSomething');
</code></pre>
