fetch object within object-CodePudding

I am trying to fetch NAME which is in SKILLS.

For that I use filter for initial level sorting.Means I am able to sort rows but how do I fetch name?

   let r = this.topics.filter(a => {
          console.log('a is : ', a)
          return a.Skills.name
          
        })

CodePudding user response：

I think you are misunderstanding what Array.filter does, it filters out/removes items from the array that does not match the criteria the user passes it, more about it here filter docs

In this case you use a Array.map to transform the data, more about it heremap docs.

 let r = this.topics.map(item => {
      return item.skills.map( skill => skill.name)
 })

The above code will return something like [['Writing', 'Reading'], ['Testing', 'Debugging']]

CodePudding user response：

You can use Map and Sort functions to achieve this.

const topics = [{
  Skills: [{
    name: "Java",
    id: 1
  },
  {
    name: "C  ",
    id: 2
  },
  {
    name: "Python",
    id: 3
  }
]
}]

let r = topics.map((a) => {
  return a.Skills.sort((a, b) => {
    return a.name.localeCompare(b.name);
  });
});

console.log(r);