使用JavaScript以印度格式显示数字

Question

我在印度编号系统中显示以下代码。

 var x=125465778;

 var res= x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");

正在获取此输出：125,465,778。

我需要这样的输出：12,54,65,778。

请帮我解决这个问题。

Answer 1

对于整数：var x=12345678;x=x.toString();var lastThree = x.substring(x.length-3);var otherNumbers = x.substring(0,x.length-3);if(otherNumbers != '')    lastThree = ',' + lastThree;var res = otherNumbers.replace(/\B(?=(\d{2})+(?!\d))/g, ",") + lastThree;alert(res);对于浮点数：var x=12345652457.557;x=x.toString();var afterPoint = '';if(x.indexOf('.') > 0)   afterPoint = x.substring(x.indexOf('.'),x.length);x = Math.floor(x);x=x.toString();var lastThree = x.substring(x.length-3);var otherNumbers = x.substring(0,x.length-3);if(otherNumbers != '')    lastThree = ',' + lastThree;var res = otherNumbers.replace(/\B(?=(\d{2})+(?!\d))/g, ",") + lastThree + afterPoint;alert(res);

Answer 2

我迟到了，但我想这会有所帮助的:)您可以使用Number.prototype.toLocaleString（）句法numObj.toLocaleString([locales [, options]])var number = 123456.789;// India uses thousands/lakh/crore separatorsdocument.getElementById('result').innerHTML = number.toLocaleString('en-IN');// → 1,23,456.789document.getElementById('result1').innerHTML = number.toLocaleString('en-IN', {&nbsp; &nbsp; maximumFractionDigits: 2,&nbsp; &nbsp; style: 'currency',&nbsp; &nbsp; currency: 'INR'});// → Rs.123,456.79<div id="result"></div><div id="result1"></div>

Answer 3

对于整数，不需要其他操作。这将匹配末尾的每个数字，其后具有1个或多个双位数字模式，并将其替换为自身+“，”："125465778".replace(/(\d)(?=(\d\d)+$)/g, "$1,");-> "1,25,46,57,78"但是，由于我们希望末尾有3个，因此让我们通过在输入的匹配末尾之前添加额外的“ \ d”来明确声明这一点："125465778".replace(/(\d)(?=(\d\d)+\d$)/g, "$1,");-> "12,54,65,778"