If you use :
replace(‘hello’,’l’,’w’). You will get hewwo as a result, that works as should.
But, if you use:
replace(‘hello (‘, ‘(‘, ‘a’). It won’t replace anything and errors out.
Seems it doesn’t like symbols. I have a workaround, but it is lengthy and would be so mush easier if it was straight forward.
BTW, if tried with both ‘ and “ and same result
Nope when I enter that as an expression, which I may not have mentioned, I get invalid paraders andvhello is not a variable
Solved the problem, please update the piston smart app - same version (don’t want to have everyone update for such a minor thing). Turns out String.replaceAll takes a Pattern as the search parameter, meaning that ( is a special character that groups search parts. I’ve made it use String.replace() instead, except for when using regex.
Also, the javascript is now capable of understanding the forward/backward single/double quotes that iOS seems to love using.
Let me know how it works, thank you.
Sorry works now. For some reason when I updated it show up as edited. I had to publish for me and works now. Thank you so much. Much easier to replace now without having to count and mid and a bunch of girations to get it done. 
Not sure if this is related to the recent change, but the following used to work
replace(requestedChannel,"[^a-zA-Z0-9]",)
but now doesn’t seem to?
Any help would be greatly appreciated. I am in effect wanting to remove any non alphanumeric characters, including spaces etc.
Seems i posted a little prematurely, i had been trying to get this to work for a a good few hours, but to no avail. After a few more experiments i have it sorted, i think
replace(requestedChannel,’/[\W_ ]/’,’’)
Is this the correct way to make this work?
