This is assuming that you don't have any way to find out what the original character was, do you? Let unknownCharCode = stringWithUnknownChar.charCodeAt(5) Let unknownChar = stringWithUnknownChar // if the char is at index 5 So if you know the location of the character you can: // you already have a variable 'stringWithUnknownChar' You can use String.charCodeAt() to try and identify the character. The thing I want is for the text in the Table of Contents to be visible. TxtBack = beforeTxt.replace('', ' ') // replace unprintable char with spaceĬonsole.log('5 + + + + + + + hidden char in text: ', beforeTxt) Īm I doing this incorrectly? There is no limit to the number of silly things people might include on slides. this invisible character looks like a question mark in a box if copied into notepad TxtBack = beforeTxt.replace('/', 'gi', ' ') // replace unprintable char with spaceĬonsole.log('4 + + + + + + + hidden char in text: ', beforeTxt) TxtBack = beforeTxt.replace('/', ' ') // replace unprintable char with spaceĬonsole.log('3 + + + + + + + hidden char in text: ', beforeTxt) TxtBack = beforeTxt.replace('//gi', ' ') // reserves Arabic characters Ĭonsole.log('2 + + + + + + + hidden char in text: ', beforeTxt) TxtBack = beforeTxt.replace(//gi, ' ') // reserves Arabic characters Ĭonsole.log('1 + + + + + + + hidden char in text: ', beforeTxt) These are the things I have tried to remove unprintable character(s). If they pass through visible in the Table of Contents that will be fine. I expect some people will include emojis in their slides but I have not tested that yet. I also want to preserve things like trademark and copyright symbols. I would like to include all printable characters in the Table of Contents no matter what language they are in. I have read in multiple places this is an unprintable character.

If I copy the entry into NOTEPAD it looks like a square with a question mark in it. I have solved many problems, but one slide I found (someone else's) results in a seemingly blank text entry in the Table of Contents. I am working on creating a Table of Contents for Google slide decks.

Box with question mark text