总和数字正确，无论格式如何

Question

我有这个功能，总结了正则表达式的结果：

＆＃13;

＆＃13;

'use strict';

function sum(string) {
    var match, result, pattern;

    pattern = /[\d,\.]+/g
    match = string.match(pattern);
 
    if (!match.length) {
      return 'Didn\'t find any trace.';
    }

    result = match.reduce(function(prev, curr) {
      curr = curr.replace(/\./g, '').replace(',', '.');
      return prev + (+curr);
    }, 0);

    if (!isNaN(result)) {
      return result;
    } else {
      return 'The sum fails.';
    }
}

console.log(sum('156,02 10')); // expected: 166.02 = works
console.log(sum('10.10 10.10')); // expected: 20.20 = doesn't work, result = 2020
console.log(sum('01.10 2,30')); // expected: 3.40 = doesn't work, result = 112.3

＆＃13;

＆＃13;

＆＃13;

只有当我的格式为152,02时才能正常工作。我希望它接受所有格式。可能吗？没有任何lib可以提供帮助吗？

感谢。

Answer 1

尝试在.replace(/\./g, '')之前删除+，包括prev运算符，将prev字符串转换为Number

'use strict';

function sum(string) {
    var match, result, pattern;

    pattern = /(\d+\.\d+)|(\d+,\d+)|(\d+)/g;
    match = string.match(pattern);
 
    if (!match.length) {
      return 'Didn\'t find any trace.';
    }

    result = match.reduce(function(prev, curr) {
      curr = curr.replace(',', '.');
      return +prev + (+curr);
    }, 0);

    if (!isNaN(result)) {
      return result;
    } else {
      return 'The sum fails.';
    }
}

console.log(sum('156,02 10')); // expected: 166.02 = works
console.log(sum('10.10 10.10')); // expected: 20.20 = doesn't work, result = 2020
console.log(sum('01.10 2,30')); // expected: 3.40 = doesn't work, result = 112.3