<let>
Appears in: <script>
<script>
Used to define (or redefine) a symbol. The symbol's value is taken from the body of element (with leading and trailing whitespace removed).
Figure C.11. <let> Attributes
Figure C.12. <let> Elements
(text | <foreach> | <if> | <if-not>) *
text
<foreach>
<if>
<if-not>