id: data
title: Collecting Data
tags: ts-data, ts-req-method
----
<p>
  Here parent <code>span</code> declares <code>ts-data</code> with three keys
  (a, b, c) and then child <code>a</code> adds another entry with key
  <code>b</code>, drops existing <code>c</code> value and adds another
  (so it overrides <code>c</code> value). And then sends a <code>POST</code>
  request to a backend. Click link to see what data was sent.
</p>

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