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modwonka's avatar
modwonka
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4 years ago
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M if text contains, if not empty

Hi,   I'm trying to improve one formula i did in M, to extract a date between brackets but i don't know how to advance. If anyone could help me, i would really appreciate it.   This is the formul...
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  • Vijay_A_Verma's avatar
    Vijay_A_Verma
    4 years ago

    in was missing

    let l=List.Transform( Text.Split([#"Tags (created on)"]," "), each Text.Remove(_,{"(",")",","})),
    i=List.PositionOf(l, "BLUETEXT")
    in if i>=0 then l{i+1} & " " & l{i+2} else null

Vijay_A_Verma's avatar
Vijay_A_Verma
Icon for Most Valuable Professional rankMost Valuable Professional
4 years ago

I think should work for you in last line

if i>=0 then l{i+1} & " " & l{i+2} else null

 

modwonka's avatar
modwonka
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4 years ago

Thanks for your answer Vijay_A_Verma!

 

I tried the solution with your code:

 

let l=List.Transform( Text.Split([#"Tags (created on)"]," "), each Text.Remove(_,{"(",")",","})),
i=List.PositionOf(l, "BLUETEXT"),
if i>=0 then l{i+1} & " " & l{i+2} else null

 

There's one error: "Token identifier expected". In the "if". Is this ok?

  • Vijay_A_Verma's avatar
    Vijay_A_Verma
    Icon for Most Valuable Professional rankMost Valuable Professional
    4 years ago

    in was missing

    let l=List.Transform( Text.Split([#"Tags (created on)"]," "), each Text.Remove(_,{"(",")",","})),
    i=List.PositionOf(l, "BLUETEXT")
    in if i>=0 then l{i+1} & " " & l{i+2} else null

    • modwonka's avatar
      modwonka
      Icon for Helper I rankHelper I
      4 years ago

      Thank you so much! That worked 😉 

    • modwonka's avatar
      modwonka
      Icon for Helper I rankHelper I
      4 years ago

      Hi Vijay_A_Verma,

      just one last thing, in case you can help again with this 😉 

      As you know, if the formula does not find BLUETEXT it puts "null". If it finds "BLUETEXT", it extracts a date from inside the parenthesis.

      The issue is that I would like to compare this column with a new one with the same formula. Date vs date. And get the smaller one and select it. But with the null that formula is broken.... how can I fix it?