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Федотов
Asked:2022-02-18 22:38:14 +0800 CST2022-02-18 22:38:14 +0800 CST

对象中所有值的总和

  • 772
  {
    "data": "2021-02-01 20:00:00",
    "summ_p": "1663.00",
    "summv": "1139.04",
  },
  {
    "data": "2021-02-01 20:00:00",
    "summ_p": "232.00",
    "summv": "111.24",
  },
  {
    "data": "2021-02-01 20:00:00",
    "summ_p": "18189.00",
    "summv": "11779.37",
  },

如何计算summ_p对象中所有值的总和？

javascript

2 个回答

  1. 显然是这样

    let result = data.reduce((acc,v) => +v.summ_p + acc, 0);
    • 1
  2. Best Answer

    let arr = [{
    "data": "2021-02-01 20:00:00",
    "summ_p": "1663.00",
    "summv": "1139.04",
  },
  {
    "data": "2021-02-01 20:00:00",
    "summ_p": "232.00",
    "summv": "111.24",
  },
  {
    "data": "2021-02-01 20:00:00",
    "summ_p": "18189.00",
    "summv": "11779.37",
  }];

let result = arr.reduce((acc, item) => acc + (parseFloat(item.summ_p)), 0).toFixed(2);

console.log(result);

    • 1

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