DMN and FEEL expressions – extending what you know
As we worked through Chapters 3 and 4, we covered many of the key points of the FEEL expression language:
- We saw that FEEL allows you to write boxed expressions (like what you type into the Excel formula box). There are many different places that you can use FEEL expressions – from decision nodes to lists to decision tables.
- One sort of FEEL expression was text and string manipulation – we used it to create a
Hello [your name]example. If you’ve read the reference docs, you’ll have seen that most text functions in Excel have an equivalent in FEEL. This includes converting strings into uppercase or lowercase, extracting text from the beginning, middle, or end of the text, replacing values, testing whether the text starts or ends with specific values, as well as splitting or combining text. - We used variables as placeholders for different values. Looking at the reference docs, you can...
