JSFiddle - React, Tailwind, and code Playground

by scrawlon

JavaScript

var defaultValue = 5;
var newValue = prompt("pick a number");

useThis = (newValue * 1) || defaultValue;
  
  if (useThis != newValue) {
    alert("That's not a number, so I picked number " + useThis + " for you.");
  }
  else {       
    alert("You picked " + useThis + "!!!");
  }