JavaScript;三位数后如何设置点? [英] JavaScript; How to set dot after three digits?

问题描述

我有以下JavaScript代码:

I have the following JavaScript code:

var calculation = $('select[name=somevalue1] option:selected').data('calc')-($('select[name=somevalue1] option:selected').data('calc')/100*$('select[name=somevalue2] option:selected').data('calc'))-($('select[name=somevalue1] option:selected').data('calc')-($('select[name=somevalue1] option:selected').data('calc')/100*$('select[name=somevalue2] option:selected').data('calc')))/100*$('select[name=somevalue3] option:selected').data('calc');

$('#calculation').text((calculation).toFixed(2).replace(".",","))

这将计算一个数字，将.更改为,，并将其四舍五入为逗号后的两位数.

That will calculate a number, change . to , and round it to two digits after comma.

我需要做的是在树的数字之后添加一个点.

What I need to do is to add a dot after tree digits before come.

手段:

1.234,56而不是1234,56

1.234.567,89而不是1234567,89

有人知道这样做的方法吗?

Does anybody know a way to do that?

推荐答案

此代码对我有用:

<p id="calculation"></p>

<script>
    function numberWithCommas(x) {
        var parts = x.toString().split(".");
        parts[0]=parts[0].replace(/\B(?=(\d{3})+(?!\d))/g,".");
        return parts.join(",");
        }

        var calculation = 1231739216.34367;

        document.getElementById("calculation").innerHTML = numberWithCommas((calculation).toFixed(2))
</script>

此代码将:

1. 小数点后两位(用于商务).
2. 将小数点更改为逗号.
3. 在小数点前每三位数设置一个点.

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