Issue

This Content is from Stack Overflow. Question asked by Niko Nota

So I created the following:

I made this matrix array, each nested array has objects:

[
  [
    { category: 'tech', product: "iPhone X", price: 320 },
    { category: 'food', product: "Cheerios", price: 5 },
  ],

  [
    { category: 'food', product: "Snickers", price: 1.5 },
    { category: 'tech', product: "Air Pods", price: 129 },
  ],  

]

Then, I created this function that loops through the array matrix:

function sortProducts (matrix) {
  for (x=0;x<matrix.length;x++) {      
      for (y=0;y<matrix[x].length;y++){ 
         console.log(matrix[x][y]);     
    }  
  }
}

Now, Im just trying to figure out how to create and return a new object containing the products sorted by their category like this:

{
 tech:  [ { tech product }, { tech product } ],
 food:  [ { food product }, { food product } ],
}

Solution

we can achieve this way too

const data = [
  [
    { category: 'tech', product: "iPhone X", price: 320 },
    { category: 'food', product: "Cheerios", price: 5 },
  ],

  [
    { category: 'food', product: "Snickers", price: 1.5 },
    { category: 'tech', product: "Air Pods", price: 129 },
  ],  
];

const fun = (ar)=>{
 var obj ={}
const mix = ar.flatMap((el ,i)=> el)
for (let[i, e] of Object.entries(mix)){
  let sep = e.category
!obj[sep] ? obj[sep]=[e] : obj[sep].push(e)
}
 return obj
}
console.log(fun(data))

This Question was asked in StackOverflow by Niko Nota and Answered by jsN00b It is licensed under the terms of CC BY-SA 2.5. - CC BY-SA 3.0. - CC BY-SA 4.0.