adding newline in string concatenation
<p>I have a <code>textarea</code> and I do <code>console.log($("textarea").val())</code>, the result can be </p>

<pre><code>abc

123
</code></pre>

<p>And I have an input, i want to concate the value with the value of textarea, like this </p>

<pre><code>input_value

abc

123
</code></pre>

<p>I tried <code>&lt;br&gt;</code> but the br will appear which is not I want. How to make newline in concatenation? use <code>\n</code>?</p>