slice(2, decimals + 2); } return formattedNumber; } // 示例 var number = 1234567.8901; var formattedNumber = number_format(number, 2, '.', ','); console.log(formattedNumber); // 输出: 1,234,567.89 复制代码 在上面的代码中,number_format函数实现了数字的格式化功能,可以指定小数点位数、...
Here is basically what happens when rounding 162.295 to two decimal places num = 162.295 num *= 100 // 16229.499999999998 num = Math.round(num) // 16229 num /= 100 // 162.29 As you can tell, it's in the second step that the number changes from its actual value. ...
1functionnumber_format(number, decimals, dec_point, thousands_sep,roundtag) {2/*3* 参数说明:4* number:要格式化的数字5* decimals:保留几位小数6* dec_point:小数点符号7* thousands_sep:千分位符号8* roundtag:舍入参数,默认 "ceil" 向上取,"floor"向下取,"round" 四舍五入9**/10number = (n...
functiondecimal_format(number, decimals, dec_point, thousands_sep,round_tag) { number = (number +'').replace(/[^0-9+-Ee.]/g,''); decimals = decimals || 2;//默认保留2位 dec_point = dec_point ||".";//默认是'.'; thousands_sep = thousands_sep ||",";//默认是','; round...
isNum(num2)) return; const count1 = getDecimalCount(num1); const count2 = getDecimalCount(num2); const formatNum1 = Number((num1 + '').replace('.', '')); const formatNum2 = Number((num2 + '').replace('.', '')); if (count2 - count1 < 0) { // ...
编写代码:在这一步中,我们需要编写一个函数来实现“number_format”功能。以下是示例代码: functionnumber_format(number,decimals,dec_point,thousands_sep){// 将数字转化为字符串并按小数位数进行四舍五入letnum=parseFloat(number).toFixed(decimals);// 使用正则表达式添加千位分隔符num=num.replace(/\B(?=...
By default, JavaScript displays numbers as base 10 decimals.But you can use the toString() method to output numbers from base 2 to base 36.Hexadecimal is base 16. Decimal is base 10. Octal is base 8. Binary is base 2.Example let myNumber = 32; myNumber.toString(32); myNumber....
代码2: function format_number(pnumber,decimals){ if (isNaN(pnumber)) { return 0}; if (pnumber=='') { return 0}; var snum = new String(pnumber); var sec = snum.split('.'); var whole = parseFloat(sec[0]); var result = ''; if(sec.length > 1){ var dec = new String...
问在JavaScript中使用恰好两个小数的数字格式化EN要使用定点表示法设置数字格式，只需使用toFixed方法：
A simple example code converts a given number into number value format with a comma and two decimal points. This turns a number1234.567in to1,234.567. <!DOCTYPE html> <html> <body> <script> var n = 1234.567; var val = Math.round(Number(n) *100) / 100; ...