Question

我正在尝试确保这些组合中的任何一个 - 将始终显示没有小数或没有逗号的舍入数字。实施例

1,200.00 should output = 1200
12.33 should output = 12
123.34 should output = 123
1,434 should output = 1434
165,33 should output = 165
250.00 should output = 250
259,00 should output = 259

我试过了：

var currency = "$1,100.00";
var number = Number(currency.replace(/[^0-9\.]+/g,""));

我的最新消息：

var priceTotal = parseFloat(price.replace( /[^\d\.]*/g, ''));

但这对逗号不起作用。它必须始终显示，不带逗号，点或最后一位数字。

Answer 1

请使用/[^0-9\.]/g正则表达式替换逗号，使用indexOf查找逗号的位置并使用parseInt进行制作该字符串为整数。

请按照以下示例::

var a = '1,200.00';
var b = '12.33';
var c = '123.34';
var d = '1,434';
var e = '165,33';
var f = '250.00';
var g = '259,00';
$(document).ready(function () {
    parseNumberCustom(a);
    parseNumberCustom(b);
    parseNumberCustom(c);
    parseNumberCustom(d);
    parseNumberCustom(e);
    parseNumberCustom(f);
    parseNumberCustom(g);
});
function parseNumberCustom(number_string) {
    var new_number = parseInt(number_string.indexOf(',') >= 3 ? number_string.split(',')[0] : number_string.replace(/[^0-9\.]/g, ''));
    console.log('Before==>' + number_string + ', After==>' + new_number);
}

Answer 2

检查

＆＃13;

<html>
<head>
<meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
  
  
</head>
<script>
$(document).ready(function(){


   

$("#Convert").click(function(){


 var currency1 = $("#mode").val()

if (currency1.indexOf(",") >= 0 && currency1.indexOf(".") >= 0)	
{
var intvalue =(parseInt(currency1.replace(/[^0-9\.]/g, '')));
alert(intvalue)
}
if (currency1.indexOf(".") >= 0 && currency1.indexOf(",") < 0)
{
var intvalue = Math.floor( currency1 );
alert(intvalue)
}
if (currency1.indexOf(",") >= 0 && currency1.indexOf(".") < 0)	
{
var streetaddress= currency1.substr(0, currency1.indexOf(',')); 
alert(streetaddress)

}
})  

});

</script>
<body>

<div class="table-responsive container">
Enter Value:
<input type=Text id="mode" text="Switch Mode" class="Form-control" value="" >
<input type=Button id="Convert" text="Switch Mode" class="btn btn-primary" value="Convert" >


  </div>
  </body>
  </html>

＆＃13;

Answer 3

使用Math.round方法对数字进行舍入或使用Math.floor方法，以防您需要较低的值。

var number = Math.round( 
   currency
     // convert the comma seperated decimal part to dot seperated
     .replace(/\D(\d{2})$/, '.$1') 
     // replace all non-digit dot characters
     .replace(/[^\d.]+/g, '')
);

＆＃13;

['1,200.00', '12,33', '123.34', '1,434', '$1,100.16'].forEach(function(currency) {
  var number = Math.round(currency.replace(/\D(\d{2})$/, '.$1').replace(/[^\d.]+/g, ""));
  console.log(currency + ' => ' + number)
})

＆＃13;

仅供参考：无需在角色类中转义.。

Answer 4

尝试使用parseInt方法

＆＃13;

    var a = '1,200.00';
    var b = '12.33';
    var c = '123.34';
    var d = '1,434';
    var e = '165,33';
    var f = '250.00';
    var g = '259,00';
    console.log(parseInt(a.replace(/\,(\d\d)$/, ".$1").replace(',','')));
    console.log(parseInt(b.replace(/\,(\d\d)$/, ".$1").replace(',','')));
    console.log(parseInt(c.replace(/\,(\d\d)$/, ".$1").replace(',','')));
    console.log(parseInt(d.replace(/\,(\d\d)$/, ".$1").replace(',','')));
    console.log(parseInt(e.replace(/\,(\d\d)$/, ".$1").replace(',','')));
    console.log(parseInt(f.replace(/\,(\d\d)$/, ".$1").replace(',','')));
    console.log(parseInt(g.replace(/\,(\d\d)$/, ".$1").replace(',','')));

＆＃13;

Answer 5

如果输入总是有两位小数（当那里有任何小数时），这应该有效：

function toNumber(string) {
    string = string.replace(/[^\d\,\.]/g, '');
    let commaNotation = /^\d+(\.\d{3})?\,\d{2}$/.test(string);
    let result = commaNotation ?
        Math.round(parseFloat(string.replace(/[^\d\,]/g, '').replace(/,/, '.'))) :
        Math.round(parseFloat(string.replace(/[^\d\.]/g, '')));
    return result;
};

如果您不想在＆gt; = 0.50时进行整理，则可以选择使用 Math.floor() 而不是 Math.round()

从jQuery中的价格中删除小数，逗号和数字

5 个答案: