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diff --git a/src/content/chapter2_flow_control/lesson09_alternative_patterns/en.html b/src/content/chapter2_flow_control/lesson09_alternative_patterns/en.html new file mode 100644 index 0000000..25421f4 --- /dev/null +++ b/src/content/chapter2_flow_control/lesson09_alternative_patterns/en.html @@ -0,0 +1,12 @@ +<p> + Alternative patterns can be given for a case clause using the + <code>|</code> operator. If any of the patterns match then the clause matches. +</p> +<p> + If a pattern defines a variable then all of the alternative patterns for that + clause must also define a variable with the same name and same type. +</p> +<p> + Currently it is not possible to have nested alternative patterns, so the + pattern <code>[1 | 2 | 3]</code> is not valid. +</p> |