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brycedwhite
Frequent Visitor

Text.StartWith syntax help

I'm trying to replace values in a single text column that begin with a specifc character.  Something like

Table.ReplaceValue(#"Merged Columns","3%",null,Replacer.ReplaceValue,{"Column2"}), but I can't figure out the correct syntax.

 

Thanks in advance for any help.

 

Bryce

1 ACCEPTED SOLUTION
v-yanjiang-msft
Community Support
Community Support

Hi @brycedwhite ,

According to your description, I create a sample.

vkalyjmsft_0-1654770772525.png

In my understanding, if the cell begin with 3% then replace the cell to null. Here's my solution:

 

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WclSK1YlWMlZ1AtPOYNLFWBUqqhQbCwA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Column2 = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Column2", type text}}),
    #"New" = Table.ReplaceValue(#"Changed Type",each [Column2], each if Text.StartsWith(Text.From([Column2]),"3%") then null else [Column2],Replacer.ReplaceValue,{"Column2"})
in
    #"New"

 

Get the correct result.

vkalyjmsft_1-1654770848493.png

I attach my sample below for reference.

 

Best Regards,
Community Support Team _ kalyj

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

View solution in original post

2 REPLIES 2
v-yanjiang-msft
Community Support
Community Support

Hi @brycedwhite ,

According to your description, I create a sample.

vkalyjmsft_0-1654770772525.png

In my understanding, if the cell begin with 3% then replace the cell to null. Here's my solution:

 

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WclSK1YlWMlZ1AtPOYNLFWBUqqhQbCwA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Column2 = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Column2", type text}}),
    #"New" = Table.ReplaceValue(#"Changed Type",each [Column2], each if Text.StartsWith(Text.From([Column2]),"3%") then null else [Column2],Replacer.ReplaceValue,{"Column2"})
in
    #"New"

 

Get the correct result.

vkalyjmsft_1-1654770848493.png

I attach my sample below for reference.

 

Best Regards,
Community Support Team _ kalyj

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

ronrsnfld
Resident Rockstar
Resident Rockstar

Might be easier to use the Table.TransformColumns function:

 

= Table.TransformColumns(#"Merged Columns",{"Column2", each if Text.StartsWith(_,"3%")
        then null else _})

 

OR

 

#"Starts with" = Table.TransformColumns(#"Merged Columns",{"Column2", each if Text.StartsWith(_,"3%")
        then Text.ReplaceRange(_,0,2,"") else _})

 

 

 

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