function number_format(number, decimals, dec_point, thousands_sep) { /*
- 参数说明:
- number:要格式化的数字
- decimals:保留几位小数
- dec_point:小数点符号
- thousands_sep:千分位符号
*/ number = (number + ‘’).replace(/[^0-9+-Ee.]/g, ‘’);
var n = !isFinite(+number) ? 0 : +number,
prec = !isFinite(+decimals) ? 2 : Math.abs(decimals),
sep = (typeof thousands_sep === ‘undefined’) ? ‘,’ : thousands_sep,
dec = (typeof dec_point === ‘undefined’) ? ‘.’ : dec_point,
s = ‘’,
toFixedFix = function(n, prec) {
var k = Math.pow(10, prec);
return ‘’ + Math.ceil(n * k) / k;
};
s = (prec ? toFixedFix(n, prec) : ‘’ + Math.round(n)).split(‘.’);
var re = /(-?\d+)(\d{3})/;
while(re.test(s[0])) {
s[0] = s[0].replace(re, "$1" + sep + "$2");
}
if((s[1] || ‘’).length < prec) {
s[1] = s[1] || '';
s[1] += new Array(prec - s[1].length + 1).join('0');
}
return s.join(dec);
}
金额格式化调用方法:
console.log(number_format(1000.123, 2)); // 1,000.13
取消格式化方法:
function rmoney(e) {
return parseFloat(e.replace(/[^\d.-]/g, “”));
}
取消格式化调用方法:
rmoney(1,000.13); // 1000.13
https://www.cnblogs.com/suanshu/p/8820763.html