~~NOTOC~~
<=[[4rpl:start| Index]]

====== NULL ======
NULL ->thisIsNull

===== Description =====
Pushes an 'empty' data item to the stack. The item has an internal type of 'null'.

===== Examples =====
<code 4rpl>
TraceAllSP(IsNull(NULL))
</code>
<=[[4rpl:start| Index]]