html - How to limit the textarea to only hold numbers?

Question

I'm trying to make a date textbox on my blog, and the date is only numbers. I don't want anybody making a mistake typing a letter. Is there any way to limit the characters to only numerals? Thanks!

Answer 1

Use HTML5 input number type instead and leverage native browser validation. Thus, no JavaScript required.

<input type="number" />

It has wide support in browsers and it's the standard and best-practice solution.

Also on mobile and tablets the numeric key pad will appear instead.

See demo