How to concat extra spaces other than using concat function in a value?

Question

How to concat extra spaces other than using concat function in a value. 
 To convert a list of text strings to a string, concat is not working if it has multiple spaces in a sequence. 
 Eg: {"a"," "," "," ", " "," "," ", "b"} 
 Actual output 
 using concat is "a b" 
 using to string function "a; ; ; ; ; ; ; b" 
 Expected output 
 "a b"

Mike Schmitt · Answer

Concat is working fine, just make sure to view Raw Output... the formatted output seems to trim the (displayed) output value. 
 Unknown said: using to string function "a; ; ; ; ; ; ; b" 
 Please keep in mind - toString() merely takes the human-readable appian interpretation of a string output, then casts that as a string. The spaces seen between each semicolon aren't actually from the data, they're originally just there for readability. There's no reason to assume concat() would come up with anything like this, since concat() deals ONLY with the actual data in the array, not adding extra fluff for readability like the default output does.

Soma · Answer

You can use the rule that uses concat directly in the necessary places, it will display only the raw output and not the formatted one

Mike Schmitt · Answer

The raw output will be the actual data the expression sends anywhere else you need it used. For more information about that we'd need more details as to what you're trying to accomplish with this.

How to concat extra spaces other than using concat function in a value?

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