What JavaScript/JQuery syntax is this?
<p>I have no idea how to search for this so I'm asking here.</p>

<p>I've inherited a project and no one that's here knows what this syntax trick is called.</p>

<p>There's a select drop down change event that will call a function if one or another specific value is selected from among the list.</p>

<pre><code>$('#accordion select[name=x_range]').change(function(){
  $('#custom-time')[$(this).val() == 'custom' ? 'show' : 'hide']();
  $('#custom-time-to-now')[$(this).val() == 'custom_to_now' ? 'show' : 'hide']();
  updateTimeIntervalOptions();
}).triggerHandler('change');
</code></pre>

<p>In this the show or hide function is called on the <code>#custom-time</code> or <code>#custom-time-to-now</code> divs.</p>

<p>What is calling functions like this called?</p>

<p>EDIT:<br>
I should have said that I understand ternary if/else, but not the <code>$(selector)[function_name]()</code> part.</p>
