在 jquery 中对最终输出进行四舍五入
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Round up final output in jquery
提问by Andy Holmes
I have the following code. Works beautifully apart from i want the final tinstotal variable to be rounded up to the nearest 1 (2.04 being rounded up to 3 etc)
我有以下代码。除了我希望最终的 tinstotal 变量四舍五入到最接近的 1（2.04 被四舍五入到 3 等）之外，效果很好
$(document).ready(function(){
// Animate logo
$('#Logo').hide().fadeIn(800);
// Calculation Scripts
// Square Metres
var output = $('#SquareMetres'),
tinoutput = $('#Tins'),
priceoutput = $('#Price');
$('input[type="text"]').keyup(function() {
var width = parseFloat( $('#width').val()),
height = parseFloat( $('#height').val()),
result = height * width / 10000,
finalresult = result.toFixed(2);
if (isNaN(result)) return;
output.text(finalresult);
// Tins
var tinmetres = 32.5,
tinprice = 18.23,
tinsresult = finalresult / tinmetres;
tinstotal = tinsresult.toFixed(2);
tinoutput.text(tinstotal);
var price = tinstotal * tinprice,
totalprice = price.toFixed(2);
priceoutput.text('￡'+totalprice)
});
});
the script is active here at http://andyholmes.me/sitewizard/index.htmlin the red box near the bottom. Hope you guys can help, thanks!
该脚本在http://andyholmes.me/sitewizard/index.html底部附近的红色框中处于活动状态。希望大家帮帮忙，谢谢！
回答by Kami
tinstotal = Math.ceil(tinsresult);
tinoutput.text(tinstotal);
Math.ceil()will round to the next whole number
Math.ceil()将四舍五入到下一个整数
回答by Phoenix
use javascript Math.round()
使用 javascript Math.round()
ex:
var a = Math.round(2.60);
var b = Math.round(-2.60);
var c = Math.round(2.49);
Result :
alert(a); => 3
alert(b); => -3
alert(c); => 2
Hope is helps you.
希望对你有帮助。
回答by karim79
priceoutput.text('￡'+ Math.ceil(totalprice));
回答by chrisvillanueva
use javascript's Math.ceil() method to round numbers up.
使用 javascript 的 Math.ceil() 方法将数字向上舍入。
you can view information about this method here:
您可以在此处查看有关此方法的信息：
回答by James South
I would imagine you are looking for Math.ceil()
我想你正在寻找Math.ceil()
