How to trim an empty line from a string

[robin.speekenbrink]

Seems pretty simple but i have a text value with an empty line. I’d like to ‘trim’ that… (so the value starts with the text instead of a linebreak))

How?

[r.candrian]

Hi @robin.speekenbrink,

Could you please provide us with the sample input and output expected?

[robin.speekenbrink]

The situation was that we were reading a file that could possibly be empty, filled with text or even filled with text that started with a blank line. We then concattenated that into an array and joined as a plain string.
The final string result must not have a leading empty line.

Our working solution is to “trim” the reading of the file, adding a conditional to the buildup of the array and then having the joining of the array still there. This works but feels rather clunky.

So, problem solved for now.

[Alumio_Bot]

Did you find the ‘String: Trim characters’ mapper?
Or was it not sufficient?

Otherwise maybe a quick regex could’ve fixed it?

How to replace everything from string with PCRE / REGEX result

It could happen you have a string and would like to replace everything except what you select with the PCRE / REGEX. For example we have the string: “/ProductImages/image-thumb__14__api_product_image/Roundball-1252789.1.png” And would like to remove everything except “Roundball-1252789.1.png”. Answer Your first thought might be to use the “String: PCRE replace” mapper with the following regex to select just the content behind the last forward slash: “([^/]+$)”. This will however not work w…

[robin.speekenbrink]

@robin.speekenbrink

Our working solution is to “trim” the reading of the file, adding a conditional to the buildup of the array and then having the joining of the array still there. This works but feels rather clunky.

As already mentioned in my previous post: a combination of trim and a conditional buildup of the array… (array_filter() would have been more clean here)