How to sort the array of objects based on a parameter

Question

I have an array of object in response as a json like:

const arr = [{
    Mandatory: false,
    Question: 65,
    QuestionType: "E",
    YesNo: "n",
    type: "QuestionOutput"
  },
  {
    Mandatory: false,
    Question: 64,
    QuestionType: "H",
    YesNo: "n",
    type: "QuestionOutput"
  },
  {
    Mandatory: false,
    Question: 85,
    QuestionType: "S",
    YesNo: "n",
    type: "QuestionOutput"
  },
  {
    Mandatory: false,
    Question: 61,
    QuestionType: "F",
    YesNo: "",
    type: "QuestionOutput"
  },
  {
    Mandatory: true,
    Question: 60,
    QuestionType: "F",
    YesNo: "",
    type: "QuestionOutput"
  }
];

I want to sort this array in ascending order based on the property Question and put the sorted object array into another object array.

Do you mean sort alphabetically? What is the logic you wish to sort by? — evolutionxbox, Sep 13 '17 at 08:27
I don't think is duplicate because here the object property value is an `integer` — Yosvel Quintero, Sep 13 '17 at 08:45

Yosvel Quintero · Accepted Answer · 2017-09-13T08:56:35.463

You can use Array.prototype.sort() with the syntax arr.sort(compareFunction), and notice that as the property value in your object is an integer you can sort:

ASC: arr.sort((a, b) => a.Question - b.Question)
DESC: arr.sort((a, b) => b.Question - a.Question)

Code:

const arr = [{Mandatory: false,Question: 65,QuestionType: "E",YesNo: "n",type: "QuestionOutput"},{Mandatory: false,Question: 64,QuestionType: "H",YesNo: "n",type: "QuestionOutput"},{Mandatory: false,Question: 85,QuestionType: "S",YesNo: "n",type: "QuestionOutput"},{Mandatory: false,Question: 61,QuestionType: "F",YesNo: "",type: "QuestionOutput"},{Mandatory: true,Question: 60,QuestionType: "F",YesNo: "",type: "QuestionOutput"}];

arr.sort((a, b) => a.Question - b.Question);
console.log('arr:', arr);

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How to sort the array of objects based on a parameter

1 Answers1