ct-field-tag">reflection</a> way to inspect field tag information.
</div>
<p></p>
<p></p>
<div class="tmd-usual">
The purpose of each field tag is application dependent. In the above example, the field tags can help the functions in the <code class="tmd-code-span">encoding/json</code> standard package to determine the field names in JSON texts, in the process of encoding struct values into JSON texts or decoding JSON texts into struct values. The functions in the <code class="tmd-code-span">encoding/json</c