How to get an single object from object containing values as array of object

Question

I want to get an object on the basis on ids.I am having object containing key value pairs. Values are in array of objects and i need to manipulate it to get desired result.

This is simple javascript that needs to be manipulated


let myObject = {
   12 : [{
          isAmber : true,
          isBreached : false ,
          priority:"High"
          },
          {
           isAmber : false,
           isBreached : true , 
           priority:"Medium"
          }
       ],
   14 : [{
          isAmber : false,
          isBreached : false ,
          priority:"High"
          },
          {
           isAmber : false,
           isBreached : true , 
           priority:"Low"
          }
       ]
}

Condition : 1)if isAmber == false && isBreached == true result should be "Red"
2)if isAmber == true && isBreached == false result should be "Amber"
3)if isAmber == false && isBreached == false result should be "Green"

I want output like this

{
   12 : {
          status : ["Amber","Red"],
          priority:["High","Medium"]
         },
   14 : {
          status : ["Green","Red"] ,
          priority:["High","Low"]
         }

}

Freecodecamp (freecodecamp.org) has many great javascript lessons, including one about this very specific thing: learn.freecodecamp.org/… — Snowmonkey
– Snowmonkey, Commented Jul 20, 2019 at 20:21

Michael Hobbs · Accepted Answer · 2019-07-21 14:53:39Z

1

This is not what I would consider a simple task for a beginner. You need to iterate over the base object and then iterate over the arrays in each child object. From there you need to determine if each element of the array passes your conditions. From there you need to return the results in the desired format.

Here is one possible solution. Though it is not exactly beginner-friendly.

let myObject = {
  12: [{
      isAmber: true,
      isBreached: false,
      priority: "High"
    },
    {
      isAmber: false,
      isBreached: true,
      priority: "Medium"
    }
  ],
  14: [{
      isAmber: false,
      isBreached: false,
      priority: "High"
    },
    {
      isAmber: false,
      isBreached: true,
      priority: "Low"
    }
  ]
}

let results = Object.keys(myObject).map(key => {
  let status = []
  let priority = []

  myObject[key].forEach(({ isAmber, isBreached, priority: elePriority }) => {
    status.push((!!isBreached) ? 'Red' : (!!isAmber) ? 'Amber' : 'Green')
    priority.push(elePriority)
  })
  return { [key]: { status, priority } }
})

console.log(JSON.stringify(results, null, 2))

edited Jul 21, 2019 at 14:53

answered Jul 20, 2019 at 20:46

Michael Hobbs

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1 Comment

Michael Hobbs Over a year ago

@adiga thanks, I've been meaning to look that up. =)

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