Forum Discussion
Imrans123
4 years agoAdvocate V
Replacing Values based on WildCard
Hi, Was wondering if anyone had idea about using wildcard entries to replace values in power Query. I have a column with many rows, each row representing string of text. I want to replace all v...
- 4 years ago
Imrans123 A complete dynamic solution in PQ is possible with JS and regex
let regex=let fx=(input)=> Web.Page( "<script> var x='"&input&"'; function dynamicReplace(a) { var b = a.match(/\d+th/gm); /*checks for a pattern-'th' preceded by digit in a string*/ if (b == null) { /*if no match returns the original string*/ return a } else { return a.replace(/th/gm, '') /*if match replace only 'th' with a blank space*/ } }; document.write(dynamicReplace(x)); </script>"){0}[Data]{0}[Children]{1}[Children]{0}[Text] in fx, Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMjQyLslQCC4pSk0tUYrViVbySE3MKclQio0FAA==", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Name = _t]), #"Changed Type" = Table.TransformColumnTypes(Source,{{"Name", type text}}), #"Added Custom" = Table.AddColumn(#"Changed Type", "Custom", each regex([Name])) in #"Added Custom"
Anonymous
4 years agoNot applicable
Hi Imrans123
I don't see wildcard in M...so the logic is if it contains "Street" then remove "th"? Pay attention to case, and modify accordingly
= Table.TransformColumns(yourPreviousStep,{{"Column1", each if Text.Contains(_,"Street") then Text.Replace(_,"th","") else _}})
- AlexisOlson4 years agoSuper User
The problem with this is that addresses like "123 Fifth Street" and "804 North Street" are very common and these would become "123 Fif Street" and "804 Nor Street".
It could also have any or none of Road/Way/Avenue/Boulevard/Lane/Drive/Terrace/Place/Court and their corresponding abbreviations instead of Street.
- Anonymous4 years agoNot applicable
AlexisOlson my bad, did not think thoroughly...