I'm trying to replace all full stops in an email with an x character - for example "my.email@email.com" would become "myxemail@emailxcom". Email is set to a string.  

My problem is it's not replacing just full stops, it's replacing every character, so I just get a string of x's.  

I can get it working with just one full stop, so I'm assuming I'm wrong on the global instance part. Here's my code:

```
let re = ".";
let new = email.replace(/re/gi, "x");

```

I've also tried 

```
re = /./gi;
new = email.replace(re, "x");

```

If anyone can shed any light I'd really appreciate it, I've been stuck on this for so long and can't seem to figure out where I'm going wrong.

\*\* Edit: Whoops, my new variable was actually called newemail, keyword new wasn't causing the issue!
['https://Stackoverflow.com/questions/43310947', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/7232648/']
Your second example is the closest. The first problem is your variable name, **`new`**, which happens to be one of JavaScript's [reserved keywords](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Lexical_grammar#Keywords) (and is instead used to construct objects, like `new RegExp` or `new Set`). This means that your program will throw a Syntax Error.

Also, since the dot (`.`) is a special character inside regex grammar, you should escape it as `\.`. Otherwise you would end up with `result == "xxxxxxxxxxxxxxxxxx"`, which is undesirable.

```js
let email = "my.email@email.com"

let re = /\./gi;
let result = email.replace(re, "x");

console.log(result)
```
You may just use `replaceAll()` String function, described here:
<https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/replaceAll>

If you are getting
**Property 'replaceAll' does not exist on type 'string'**
error - go to `tsconfig.json` and within "lib" change or add "es2021".

Like this:

[![enter image description here](https://i.stack.imgur.com/TKIil.png)](https://i.stack.imgur.com/TKIil.png)

More info here: [Property 'replaceAll' does not exist on type 'string'](https://stackoverflow.com/questions/63616486/property-replaceall-does-not-exist-on-type-string)