Forum Discussion
What does the symbol () , =>, _ mean in M expression?
Hi mpi_gov_vn
You use ( )=> to declare (the start of) a function without input arguments in M.
Check this out: https://docs.microsoft.com/en-us/powerquery-m/m-spec-functions
As for _ ,each is equivalent to
(_)=>
i.e. declaring (the start of) a function where _ is the input argument to the function
Read this excellent article to know more about each and _
https://www.excelguru.ca/blog/2018/01/09/each-keyword-power-query/
Please mark the question solved when done and consider giving a thumbs up if posts are helpful.
Contact me privately for support with any larger-scale BI needs, tutoring, etc.
Cheers
Community ChampionHi mpi_gov_vn
You use ( )=> to declare (the start of) a function without input arguments in M.
Check this out: https://docs.microsoft.com/en-us/powerquery-m/m-spec-functions
As for _ ,each is equivalent to
(_)=>
i.e. declaring (the start of) a function where _ is the input argument to the function
Read this excellent article to know more about each and _
https://www.excelguru.ca/blog/2018/01/09/each-keyword-power-query/
Please mark the question solved when done and consider giving a thumbs up if posts are helpful.
Contact me privately for support with any larger-scale BI needs, tutoring, etc.
Cheers
Thanks AlB , that hit the spot!