JSFiddle - React, Tailwind, and code Playground

by Sergey Linnick

HTML

<input  onkeypress="isInputNumber(event, 3)">

JavaScript

function isInputNumber(event, limit){
	                
	 let characters = String.fromCharCode(event.which);
	                
	   if(!(/[0-9]/.test(characters))){
	      event.preventDefault();
	   }
     
     if (limit) {
      event.target.maxLength = limit;
     }
	                
	}