[Vuejs]-Vue.js JSON grouping array multiple times

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Instead of using a single key as parameter, you can get array of keys. Then create a unique key based on the values for each of those keys separated by a |.

groupBy: function(array, keys){
  const result = {};
   array.forEach(item => {
    // get an array of values and join them with | separator
    const key = keys.map(k => item[k]).join('|');
    // use that unique key in result
    if (!result[key]){
      result[key] = []
    }
    result[key].push(item)
   });
  return result
}

For the object you’ve posted, the unique key would look like this:

Gecultiveerde paddestoelen|Shii-take|Medium

Here’s a snippet:

function groupBy (array, keys){
  const result = {};
   array.forEach(item => {
    const key = keys.map(k => item[k]).join('|');
    if (!result[key]){
      result[key] = []
    }
    result[key].push(item)
   });
  return result
}

const input=[{Class:"Gecultiveerde paddestoelen",Soort:"Shii-take",Sortering:"Medium",LvH:"SP",Omschrijving:"SHIITAKE MEDIM STEMLESS unclosed","Trade unit composition":"8 x 150gr","Punnet type":"CARTON","CONTAINER BOX":"Multicrate (30x40x11)","Price (/box)":"10","Amount (container box) per Pallet / Europallet \r":"200 / 160\r"}];

console.log(groupBy(input, ['Class', 'Soort', 'Sortering']))
👤adiga

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