JS数组合并和求和

Question

我有数组{"BS-WHITE":3,"BS-BOX":1}//input value{"BS-WHITE":2,"BS-BOX":0,"BS-WHITE-1":1}//output value我想合并它们以获得数组中的数组，如下所示：[["BS-WHITE",3,2],["BS-BOX",1,0],["BS-WHITE-1",0,1]]如果值不存在，则应为 0。

Answer 1

不清楚你想要一个输出对象还是数组。

无论如何..你可以尝试像下面这样的东西。

如果你需要一个输出数组。

a = {"BS-WHITE":3,"BS-BOX":1}//input value

b = {"BS-WHITE":2,"BS-BOX":0,"BS-WHITE-1":1}

c = [...new Set([...Object.keys(a), ...Object.keys(b)])];

result = c.map((key) => {

   return  {

        [key]: [(a[key] || 0), (b[key] || 0)] 

    }   

});

console.log(result);

如果你需要一个输出对象。

a = {"BS-WHITE":3,"BS-BOX":1}//input value

b = {"BS-WHITE":2,"BS-BOX":0,"BS-WHITE-1":1}

c = [...new Set([...Object.keys(a), ...Object.keys(b)])];

result = c.reduce((acc,key) => {

        acc[key] = [(a[key] || 0), (b[key] || 0)] 

        return acc;

  

}, {});

console.log(result);

如果您需要数组数组

a = {"BS-WHITE":3,"BS-BOX":1}//input value

b = {"BS-WHITE":2,"BS-BOX":0,"BS-WHITE-1":1}

c = [...new Set([...Object.keys(a), ...Object.keys(b)])];

result = c.map(key => {

        return [key , (a[key] || 0), (b[key] || 0)]

  

});

console.log(result);