How to define the method on custom component? In AngularJS 2
<p>I was create my component(A). That is combine multiple html element.
and I have 2 question.</p>

<ol>
<li><p>I don't know how defined method(get, etc..) on my component. I used @Output, @ViewChild, etc.. but it is not working. and I don't wanna develope this way. I need other way.</p></li>
<li><p>How can I find my component(A) at home component?</p></li>
</ol>

<p>and other question..</p>

<ol>
<li>how use component focus out event? what to use focus out keyword?
(ngFocusOut)? (focusout)? (ngBlur)? (blur)? that is not working..</li>
</ol>

<p>plz help me!!</p>