Is there any advantage of of using comma over + to concatenate primitive types in Javascript?
<p>I have seen commas to concatenate primitive data types in Javascript and was wondering whether there was any difference in using a comma over say the <code>+</code> operator as well as the .concat() function?</p>

<p>So an example the following statement gives me abc</p>

<pre><code>var value1 = a, value2 = b, value3 = c;
document.write(value1,value2,value3);
</code></pre>
