JSFiddle - React, Tailwind, and code Playground

by Vitaliy

HTML

<input type="text" id="count">
    <div id="rez"></div>
    <div id="rez2"></div>

JavaScript

var price = 1000;
var dost = 250;
var col = 0;
count.oninput = function(){
	var self = this;
    setTimeout(function(){calculate.call(self);}, "500");
}
function calculate(){
	sum = parseInt(this.value) * price + dost;
    col = parseInt(this.value);
    if(col){
        rez.innerHTML = "цена:" + sum;
        rez2.innerHTML = "кол-во: " + col;
    }
    else{
    	rez.innerHTML = "цена:";
		rez2.innerHTML = "кол-во: ";
    }   
}