如何将小数舍入为整数

Question

我正在尝试获取一个完整的数字（整数），而输出始终是十进制。我该如何改变？

我已经尝试过搜索堆栈溢出，但是找不到类似的问题

// Javscript exercise taken from internet for absolute beginners

var people = prompt("how many people are there? ");

var pizzas = prompt("How many pizzas are there? ");

const slices = 8;

var perPerson = ((pizzas * slices) / people);

var leftovers = perPerson % 2;

if (leftovers !== 0) { 

    Math.round(leftovers);

}

prompt(`There are a total of ${people} people with ${pizzas} pizzas`);

prompt(`Each person gets ${perPerson} slices of pizza`);

prompt(`There are ${leftovers} leftover slices of pizza`);

我期待整数，但只得到小数

Answer 1

你必须leftovers像这样重置leftovers=Math.round(leftovers);var people = prompt("how many people are there? ");    var pizzas = prompt("How many pizzas are there? ");    const slices = 8;    var perPerson = ((pizzas * slices) / people);    var leftovers = perPerson % 2;    if (leftovers !== 0) {        leftovers=Math.round(leftovers);    }    prompt(`There are a total of ${people} people with ${pizzas} pizzas`);    prompt(`Each person gets ${perPerson} slices of pizza`);    prompt(`There are ${leftovers} leftover slices of pizza`);