How to solve the "Invalid regular expression: /?/: Nothing to repeat" problem

Question

I want to replace every occurence of a question mark, point, comma etc. in a string called TextToSimplify but I keep getting the error as said in the title. What can I do about it

ToSimplifyText = ToSimplifyText.replace(/,/g, "");
ToSimplifyText = ToSimplifyText.replace(/./g, "");
ToSimplifyText = ToSimplifyText.replace(/!/g, "");
ToSimplifyText = ToSimplifyText.replace(/?/g, "");
ToSimplifyText = ToSimplifyText.replace(/'/g, "");

Answer 1

You can do all that stuff on one single replace, like this:

ToSimplifyText = "Hello. Dude! Aren't you ok?"
console.log(ToSimplifyText.replace(/[,.'?!]/g, ""));

Note, that if you want to replace a special character, you will have to escape it with \. Note also, this is not necessary when using a set of characters with [...], like in the previous example:

ToSimplifyText = "Hello. Dude! Aren't you ok?"
console.log(ToSimplifyText.replace(/\?/g, ""));