How to use Preview version of office-js Excel API?

I want to use Preview features of office-js Excel API (specifically DataValidation).

This page says that I should use Beta version of the library and they provide a link but I have no idea what to do with it.

What I did so far:
I have added the js path to index.html.
I copied types from ts file to file in node_modules.

But it doesn't seem like a good solution since whenever I update @types/office-js I would also have to copy source again...

in order to use preview Api you only need:

Install latest insiders fast build, AND
refer to the BETA CDN for office.js and if you will use typescript the typescript library: here are the URLs you need to use, as Ricky suggests make sure you add those references to your HTML or JS files in your web app.

https://appsforoffice.microsoft.com/lib/beta/hosted/office.js https://appsforoffice.microsoft.com/lib/beta/hosted/office.d.ts

If you are using angular follow these steps.

Refer to the beta office js cdn.

<script src="https://appsforoffice.microsoft.com/lib/beta/hosted/office.js" type="text/javascript"></script>

If you need type definition for beta version, install this.

npm install --save-dev @types/office-js-preview

If you were already using the production version, uninstall it:

npm uninstall --save-dev @types/office-js

Mention the following type in tsconfig.app.json like this (if types is already empty).

"types": ["office-js-preview"]

来源：https://stackoverflow.com/questions/51441910/how-to-use-preview-version-of-office-js-excel-api

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