Welcome to the Make community!
You cannot use most JavaScript functions inline within Make.
The list of supported functions can be found in the Make Help Centre, like:
- parseNumber
parseNumber(number; decimal separator)
Also, there is no such thing as a tojson function (hence it’s in a “black” background). Where did you learn about this? Instead, you should be using the JSON “Transform to JSON” module —
Transforms any object to JSON.
If you want to use JavaScript, I suggest installing an app that allows you to write and run JavaScript code in a module, like my [App] Sam's Toolbox of Useful Modules: @samliew.
You can also learn more about functions in these Make Academy units:
Transforming data using functions
- Introduction functions
- Transforming Data - Text functions
- Transforming Data - average ()
- Transforming Data - formatNumber
- Transforming date and time using functions
- Conditional functions
- String and array conversion functions part 1
- String and array conversion functions part 2
Hope this helps! Let me know if there are any further questions or issues.
— @samliew
P.S.: investing some effort into the tutorials in the Make Academy will save you lots of time and frustration using Make!