Sometimes you need new code converted to things ServiceNow understands. Arrow functions now work in ServiceNow in some places but not others. `let`, `const` same thing.

Here's a way to take any new script and make it work. This is called transpiling. It's complicated. The way I understand it is, you give it new code, and it makes it work with and older set of JavaScript features that were available a long time ago using polyfills.

Enough dry stuff let's get trying it.

Go to [babeljs.io/repl](https://babeljs.io/repl/) and set the target to, `defaults, ie 11`.

Then paste in the new JavaScript. Or if you want something to start with try pasting this code.

```js
let a = ()=>{
console.log(message);
}
// see let becomes var
// and () => {} becomes function(..)
// lets try other things
//
let [red,green,blue] = [0,1,2];
// copying into a new object
var person = {
name: "Jace",
location: "MN"
}
/*
// if you uncomment this, it will add a polyfill to do this
let copy = {
...person
}
*/
```

That should become something like;

```js
var a = function a() {
console.log(message);
};
// see let becomes var
// and () => {} becomse function(..)
// lets try other things
// spread
var red = 0,
green = 1,
blue = 2;
// copying into a new object
var person = {
name: "Jace",
location: "MN"
};
/*
// if you uncomment this, it will add a polyfill to do this
let copy = {
...person
}
*/
```