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 beginnersvar 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`);