TypeScript Array.from() Method
Last Updated :
14 Mar, 2024
TypeScript `Array.from()` method is a versatile method that transforms array-like or iterable objects into actual arrays. It allows to create arrays from objects with a length property or iterable structures, simplifying the conversion process.
This method is particularly useful for working with collections of data where array operations are needed, providing a convenient and concise way to achieve array representation in TypeScript.
Syntax:
Array.from(object, mapFunction, thisValue)
Parameters:
- object: This Parameter is wanted to specify the object to transform to an array.
- mapFunction: This Parameter specifies the map function to call on every item of the array.
- thisValue: This Parameter specifies the charge to apply as this on the equal time as executing the map function.
Return Value:
It returns an array object or instance of an array.
Example 1: In this example, we will be using the Array from() method to create an array from the string value.
Javascript
// Creating array from input string
let myArr: string[] = Array
.from("GeeksForGeeks");
// Display output
console.log(myArr);
Output:
[
'G', 'e', 'e', 'k',
's', 'F', 'o', 'r',
'G', 'e', 'e', 'k',
's'
]
Example 2: In this example, we will be using Array from() method to create an array from the string value.
Javascript
// Creating array form the given string
let myArr: string[] = Array
.from("45878965412365");
// Display output
console.log(myArr);
Output:
[
'4', '5', '8', '7',
'8', '9', '6', '5',
'4', '1', '2', '3',
'6', '5'
]
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