Скачать или смотреть JavaScript : How do I restrict an input to only accept numbers?

JavaScript : How do I restrict an input to only accept numbers?
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

As I promised, I have a secret feature to share with you.
This is a YouTube's feature which works on Desktop.
First, Ensure that the video is playing before proceeding.
Then, type the letters 'awesome' on the keyboard.
The progress bar on YouTube will be altered to a flashing rainbow.

Here's a short introduction about myself,
Greetings, my name is Delphi.
Let me help you get the answers you need to your questions.
JavaScript : How do I restrict an input to only accept numbers?
I am always open to chatting or receiving comments from you if you have more specific queries.
We appreciate your participation, so please feel free to comment below with your answer or insights.
A 'heart' from me will be given to show my gratitude for your contribution.
an How : only JavaScript numbers? I input do to restrict accept