原有格式

list=[
{ 
   produceName:'测试1',
   productCode:'cs01',
  num:1,
  ...
},
{ 
   produceName:'测试1',
   productCode:'cs01',
  num:4,
  ...
},
{ 
   produceName:'测试2',
   productCode:'cs02',
  num:1,
  ...
},
]

要变成的格式

 newList=[
{ 
   produceName:'测试1',
   child:[
    {
      productCode:'cs01',
  num:1,
  ...
     },
    {
     productCode:'cs01',
      num:4,
      ...
      }
    ]
},
{ 
   produceName:'测试2',
   child:[
      {
          productCode:'cs02',
          num:1,
          ...
          }
    ]
},
]

如何通过代码进行实现

const groupedProducts = [];
res.data.boxCodeInfoList.map(product => {
if (groupedProducts.some(grpProduct => grpProduct.proName === product.proName)) {
// 如果产品名已存在，则找到相应的产品对象，并添加码值和数值
const index = groupedProducts.findIndex(grpProduct => grpProduct.proName ===product.proName);
groupedProducts[index].childList.push({
    boxCode: product.boxCode,
    num: product.num,
    boxCode: product.boxCode,
    codeType: product.codeType,
    proCode: product.proCode,
    typeDesc: product.typeDesc
});
} else {
// 如果产品名不存在，则创建一个新的产品对象，并添加到数组中
groupedProducts.push({
     proName: product.proName,
    childList: [{
        boxCode: product.boxCode,
        num: product.num,
        boxCode: product.boxCode,
        codeType: product.codeType,
        proCode: product.proCode,
        typeDesc: product.typeDesc
   }],
});
}
});
console.log(groupedProducts)
// 码值列表
this.boxCodeInfoList = groupedProducts