If the select option is "1" then the input displays "Hi, how are you" if "2", then "Norms". How to do it??

Question

JavaScript

Greetings. Can you please tell me how to give a value depending on the choice for a certain one?
For example, in option:
Product number 1 Product number 2
If I choose the first product, then the description for this product is entered in input disabled, for example: High quality product.
If the product is the second, then it is written for example: Out of stock
Super needed. Thank you very much! :c

Answer 1

https://jsfiddle.net/y0u/w7qLz15j/

Answer 2

Here you need to take angular 5 or React.
You can't do without JS.