TypeScript Sorting Array - GeeksforGeeks (2024)

Last Updated : 02 Jan, 2024

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To sort an array in TypeScript we could use Array.sort() function. TheArray.sort()is an inbuilt TypeScript function that is used to sort the elements of an array.

Syntax:

array.sort(compareFunction)

Below are the places where we could use the sort() function:

Table of Content

  • Sorting array of numbers
  • Sorting Array of Strings
  • Sorting Array of Objects

Sorting Array of Numbers

Example: In this example, we have an array of numbers, and we use the sort method with a custom comparison function to sort the array in ascending order.

Output:

Sorted Numbers: [1, 2, 4, 5, 7, 9]

Sorting Array of Strings

Example: In this example, we have an array of strings, and we use the sort method to sort the strings in default lexicographic order.

Javascript

const fruits: string[] = ["Apple", "Orange", "Banana", "Mango"];

fruits.sort();

console.log("Sorted Fruits: ", fruits);

Output:

Sorted Fruits: [ 'Apple', 'Banana', 'Mango', 'Orange' ]

Sorting Array of Objects

Example: In this example, we have an array of people with name and age properties. We use the sort method with a custom comparison function to sort the array based on the age property in ascending order.

Javascript

interface Person {

name: string;

age: number;

}

const people: Person[] = [

{ name: "Alice", age: 25 },

{ name: "Bob", age: 30 },

{ name: "Charlie", age: 22 },

{ name: "David", age: 28 }

];

people.sort((a, b) => a.age - b.age);

console.log("Sorted People by Age: ", people);

Output:

Sorted People by Age: [ 
{ name: 'Charlie', age: 22 },
{ name: 'Alice', age: 25 },
{ name: 'David', age: 28 },
{ name: 'Bob', age: 30 }
]


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TypeScript Sorting Array - GeeksforGeeks (2024)

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