What exactly is a JavaScript pragma?
<p>When you want a JavaScript file (or function) to be parsed in "strict mode" you can put..</p>

<pre><code>"use strict";
</code></pre>

<p>..in the top of your JavaScript file (or function).</p>

<p>This "use strict"; is a so-called "pragma".</p>

<p>My question: <strong>what exactly is a pragma?</strong>
The closest thing I can think of is a "directive".</p>
