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original_url: "https://jace.pro/blog/do-you-need-new-javascript-to-work-in-servicenow/"
format: markdown
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Do you need new JavaScript to work in ServiceNow?# Do you need new JavaScript to work in ServiceNow?

October 17, 2024 [servicenow](/tags/servicenow/)

  Enable AI AnimationSometimes 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.

`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;

`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
}
*/`
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[View this page on GitHub](https://github.com/jacebenson/jace.pro/tree/main/./src/posts/2024/2024-10-17-do-you-need-new-javascript-to-work-in-servicenow.md).

[Do you need new JavaScript to work in ServiceNow?](https://jace.pro/blog/do-you-need-new-javascript-to-work-in-servicenow/) [Jace Benson](https://jace.pro) ![Jace Benson](https://jace.pro/icon-512x512.png)

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*This content is from Jace Benson's ServiceNow and tech blog at jace.pro*
*Original post: https://jace.pro/blog/do-you-need-new-javascript-to-work-in-servicenow/*