How to get array after convert by reduce()-CodePudding

How to get an array after converted by reduce()?

Before convert:

After convert:

newProductsDetail = newProductsDetail.reduce((acc, curr) => {
      const { categoryName } = curr
      if (!acc[categoryName]) {
        acc[categoryName] = []
      }
      acc[categoryName].push(curr)
      return acc
    }, [])

I would like get newProductsDetail[categoryName]

Have any way to approach this?

Thanks to all of you!

CodePudding user response：

you can filter it like this

productDetail.filter( detail => { if(detail !== undefined && detail[0] !== undefined) return detail[0].categoryName === myCategory; return false; } )

CodePudding user response：

Set initial value as object and not list as follows if you want to get hold of value from newProductsDetail[categoryName]:

newProductsDetail = newProductsDetail.reduce((acc, curr) => {
      const { categoryName } = curr
      if (!acc[categoryName]) {
        acc[categoryName] = []
      }
      acc[categoryName].push(curr)
      return acc
    }, {}) // dictionary/object is initial and not list

If you only want array and some manipulation, try to use map to iterate and convert final output to array of something.