Decrement Variable Value

This page uses Hashtag Decrement commands to demonstrates altering Variable values.  
Processing this Hashtag Markup: 
<#

set my_var to 10;
decrement my_var by 1;

#>
Note:  Hashtag Markup is shown below <# in bold #>.   The value generated by processing the Hashtag Markup, and applying any Variable Contexts, is injected into this HTML page after the ⇒ symbol.  
<#[my_var]#> ⇒ 9

The Hashtag Markup Language provides many methods for setting variable values, and using them later.

Variable Buckets can hold many values, processed together.   Variable Contexts enable safe injection anywhere.