Replace Text on Click Using JavaScript

Hi,

I have several thousand pages on my website that show contact details of clients and phone numbers.

If I was to replace the telephone phone number with "Show Telephone Number" using JavaScript to hide one div and show another in it’s place, will Google view this as hidden text and penalise me?

Thanks

 

Google wont penalize that for sure.

 

But I think there's no way to do. Because Google Ads will drive visitor to other page by javascript, so If you wanna do that, you must rewrite google show ads script as you want. It's really hard!