<h3>Dynamic Variables</h3>

<p>Dynamic variables start with an underscore followed by a lower case letter. Dynamic variables set in the current function may be accessed by any functions it calls (directly or indirectly). Access to callee dynamic variables is read-only; if a new value is assigned to a dynamic variable it will not affect previous values.</p>

<p><b>Note</b>: When a dynamic variable is set to a mutable value (e.g. an object) then the called code can modify the contents of the value. The origin