Last Updated : 11 Jul, 2023
The Javascript Uint32Array array represents an array of 32-bit unsigned integers in the platform byte order. By default, the contents of Uint32Array are initialized to 0.
The from() function of Uint32Array is used to create a new Uint32Array from an array-like or iterable object.
So when you want to convert an arrayLike or iterable object then you can be used this function by passing the object as a parameter to this function along with the map function and value used for the map function if needed.
Syntax:Uint32Array.from(source, mapFn, thisArg)Parameters:
This method accepts three parameters that are specified below:
This method returns a new Uint32Array instance.
JavaScript program to Illustrate the working of from() function:
Example 1: In this example, we will see the basic use of the JavaScript Uint32Array.from() method to display the creation of Uint32Array form a string of numbers.
javascript
// Create a Uint32Array from
// a string like structure
let array = Uint32Array.from('987654321234567');
// Display the result
console.log(array);
Uint32Array(15) [ 9, 8, 7, 6, 5, 4, 3, 2, 1, 2, 3, 4, 5, 6, 7 ]
Example 2: In this example, we will see the basic use of JavaScript Uint32Array.from() method to implement the transformation on every element to create a new Uint32Array instance.
javascript
// Create a Uint32Array from a array by
// dividing by 32 to each number using function
let array = Uint32Array.from(
[
543234, 432345, 5432123, 43234,
23432, 5432345, 432345, 23432,
],
(z) => z / 32
);
// Display the result
console.log(array);
Uint32Array(8) [ 16976, 13510, 169753, 1351, 732, 169760, 13510, 732 ]
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