Скачать или смотреть JavaScript : Check if input is number or letter javascript

JavaScript : Check if input is number or letter javascript
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

As promised, I'm going to share a hidden feature 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.
It will change your youtube progress bar into a flashing rainbow.

A quick introduction about me,
Good day, I am Delphi.
I am here to aid you in getting answers to your questions.
JavaScript : Check if input is number or letter javascript
Let me know if you have more specific questions or concerns by leaving a comment or starting a chat.
Your input is valuable, so please comment below if you have an answer or any insights to the answer.
A 'heart' from me will be given to show my gratitude for your contribution.
input letter Check : or JavaScript javascript number if is