Grouping objects in Linq JS based on the first letter of their names

Question

Grouping objects in Linq JS based on the first letter of their names

list = [
    {
        "Id": "547370FD-5185-47F7-B980-C439A010E028",

        "FirstName": "Rahul",
        "LastName": "Grag"
    },
    {

        "Id": "547370FD-5185-47F7-B980-C439A010E027",
        "FirstName": "Mohit",
        "LastName": "V"
    },
    {

        "Id": "547370FD-5185-47F7-B980-C439A010E026",
        "FirstName": "Sanjeev",
        "LastName": "Kumar"
    },
    {

        "Id": "547370FD-5185-47F7-B980-C439A010E025",
        "FirstName": "Manish",
        "LastName": "Kumar"
    },
    {

        "Id": "547370FD-5185-47F7-B980-C439A010E024",
        "FirstName": "Rahul",
        "LastName": "Jain"
    },
    {

        "Id": "547370FD-5185-47F7-B980-C439A010E023",
        "FirstName": "Shikha",
        "LastName": "K"
    }
];

To organize these objects based on the first letter of their FirstName, you can create a function that groups them accordingly.

javascript angularjs linq

Answer 1

Answer №1

This code snippet is used to group objects based on the first letter of their names. It creates an object where each key corresponds to a unique first letter, and the value is an array containing all objects with the same first letter in their FirstName property.

var nameGroups = {};

list.forEach(function(object) {
  if (!object.FirstName || !object.FirstName.length) return;

  var firstLetter = object.FirstName[0];

  if (!nameGroups[firstLetter]) {
    nameGroups[firstLetter] = [];
  }
  nameGroups[firstLetter].push(object);
});

To ensure consistency in capitalization, you can use firstLetter.toUpperCase() if needed.

Answer 2

This code snippet is used to group objects based on the first letter of their names. It creates an object where each key corresponds to a unique first letter, and the value is an array containing all objects with the same first letter in their FirstName property.

var nameGroups = {};

list.forEach(function(object) {
  if (!object.FirstName || !object.FirstName.length) return;

  var firstLetter = object.FirstName[0];

  if (!nameGroups[firstLetter]) {
    nameGroups[firstLetter] = [];
  }
  nameGroups[firstLetter].push(object);
});

To ensure consistency in capitalization, you can use firstLetter.toUpperCase() if needed.

Answer 3

Answer №2

If you happen to be utilizing linq.js, this task is quite simple.

With the assistance of linq.js, one can easily accomplish this by executing: var query = Enumerable.From(list).GroupBy("$.FirstName[0]");

Answer 4

If you happen to be utilizing linq.js, this task is quite simple.

With the assistance of linq.js, one can easily accomplish this by executing: var query = Enumerable.From(list).GroupBy("$.FirstName[0]");

Grouping objects in Linq JS based on the first letter of their names

Answer №1

Answer №2

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