Sort Js array of object by two values

Question

I am working on one small application
in that i want to sort the array of objets by two values
one is time stamp and one in string

I tried this below snippet but its not satisfying the below condition

I want this object mentioned in snippet should sorted based on the object should contain sport as cricket first and empty value as second and both are sorted by date ascending order

var content =  [
        {
            "first_name": "musk",
            "sport": "cricket",
            "created_date": "2022-08-12 04:03:08",            
        },
        {
            "first_name": "john",
            "sport": "",
            "created_date": "2022-08-01 23:00:46",
            
        },
         {
            "first_name": "robot",
            "sport": "cricket",
            "created_date": "2022-08-10 23:00:46",
            
        },
        {
            "first_name": "roy",
            "sport": "",
            "created_date": "2022-07-31 23:00:46",
            
        },
]


    content.sort(function compare( a, b ) {
            if ( a.sport < b.sport || (new Date(a.created_date) < new Date(b.created_date))){
                return 1;
            }
            if ( a.sport > b.sport || (new Date(a.created_date) < new Date(b.created_date)) ){
                return -1;
            }
            return 0;
        });
        
console.log(content)

Attached the expected result

expected result

var content =  [
         {
            "first_name": "robot",
            "sport": "cricket",
            "created_date": "2022-08-10 23:00:46",
            
        },
        
          {
            "first_name": "musk",
            "sport": "cricket",
            "created_date": "2022-08-12 04:03:08",            
        },
        {
            "first_name": "roy",
            "sport": "",
            "created_date": "2022-07-31 23:00:46",
            
        },
        {
            "first_name": "john",
            "sport": "",
            "created_date": "2022-08-01 23:00:46",
            
        },
       
]

can anyone help me with what i am doing wrong in snippet

Does this answer your question? How to sort an array of objects by multiple fields? — Heretic Monkey
– Heretic Monkey, Commented Aug 12, 2022 at 11:06

mikyll98 · Accepted Answer · 2022-08-12 11:58:35Z

1

That should do the job:

var content =  [
      {
          "first_name": "musk",
          "sport": "cricket",
          "created_date": "2022-08-12 04:03:08",            
      },
      {
          "first_name": "john",
          "sport": "",
          "created_date": "2022-08-01 23:00:46",

      },
      {
          "first_name": "robot",
          "sport": "cricket",
          "created_date": "2022-08-10 23:00:46",

      },
      {
          "first_name": "roy",
          "sport": "",
          "created_date": "2022-07-31 23:00:46",

      },
];

content.sort(function compare(a, b) {
      // compare the "sport" fields
      if(a.sport > b.sport){
        return -1;
      }
      if(a.sport < b.sport){
        return 1;
      }
      // compare the dates
      if(new Date(a.created_date) < new Date(b.created_date)){
        return -1;
      }
      if(new Date(a.created_date) > new Date(b.created_date)){
        return 1;
      }
      return 0;
});

console.log(content);

content.sort(function compare(a, b) {
      // compare the "sport" fields based on they include "cricket" string or not
       if(a.sport.includes("cricket") && !b.sport.includes("cricket")){
        return -1;
      }
      if(!a.sport.includes("cricket") && b.sport.includes("cricket")){
        return 1;
      }
      // compare the dates
      if(new Date(a.created_date) < new Date(b.created_date)){
        return -1;
      }
      if(new Date(a.created_date) > new Date(b.created_date)){
        return 1;
      }
      return 0;
});

console.log(content);

edited Aug 12, 2022 at 11:58

answered Aug 12, 2022 at 10:25

mikyll98

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8 Comments

CcmU Over a year ago

Careful, you're comparing only the length of sport

mikyll98 Over a year ago

@CcmU isn't that what's he asking in the question? He's asking to compare sport field based on if it contains "cricket" or not, and that's one way to achieve it. It could aswell just check if it contains "cricket" or not, using .include("cricket")

Dinesh s Over a year ago

Thanks @mikyll98 , i will add a check for sport cricket as well

CcmU Over a year ago

@mikyll98 actually it's not clear if we should only consider cricket as a possible value for the question per se. For the given example it could be enough, but it will most certainly not work for a more general use.

Dinesh s Over a year ago

@mikyll98 if we want to add check as well we want to add check for both a and b right or instead of length how to sort by only adding the check

|

Charchit Kapoor · Accepted Answer · 2022-08-12 10:27:07Z

0

Check for date comparison only when sport values are equal, like this:

var content =  [
        {
            "first_name": "musk",
            "sport": "cricket",
            "created_date": "2022-08-12 04:03:08",            
        },
        {
            "first_name": "john",
            "sport": "",
            "created_date": "2022-08-01 23:00:46",
            
        },
         {
            "first_name": "robot",
            "sport": "cricket",
            "created_date": "2022-08-10 23:00:46",
            
        },
        {
            "first_name": "roy",
            "sport": "",
            "created_date": "2022-07-31 23:00:46",
            
        },
]


    content.sort(function compare( a, b ) {
            if(a.sport === b.sport) {
               return (new Date(a.created_date) < new Date(b.created_date)) ? -1 : new Date(a.created_date) === new Date(b.created_date) ? 0 : 1
            }
            return a.sport < b.sport ? 1: -1
        });
        
console.log(content)

edited Aug 12, 2022 at 10:27

answered Aug 12, 2022 at 10:23

Charchit Kapoor

9,3242 gold badges11 silver badges26 bronze badges

2 Comments

Mykyta Halchenko Over a year ago

did you test it before writing the answer? a.sport === b.soprt)

Charchit Kapoor Over a year ago

Thanks, @skalpel02 made a typo while editing the answer.

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