Node.js – util.types.isInt32Array() Method

The util.types.isInt32Array() method checks whether the passed value is a built-in Int32Array instance or not. If the above condition is satisfied, it returns True, else False.

Syntax

util.types.isInt32Array(value)

Parameters

• value − This input takes input for the required parameter and checks if it's an Int32Array instance or not. Returns True or False based upon the input value passed.

Example 1

Create a file with name isInt32Array.js and copy the below code snippet.

After creating the file, use the following command to run this code and check the output -

node isInt32Array.js

Program Code

// util.types.isInt32Array() Demo Example

// Importing the util module
const util = require('util');

// Passing normal Int32-Array as input value
console.log("1." + util.types.isInt32Array(new Int32Array()));

// Passing a Array buffer as input
console.log("2." + util.types.isInt32Array(new ArrayBuffer()));

// Passing a Float64 array as input
console.log("3." + util.types.isInt32Array(new Int16Array()));

Output

C:\home
ode>> node isInt32Array.js
1.true
2.false
3.false

Example 2

// util.types.isInt32Array() Demo Example

// Importing the util module
const util = require('util');

// Defining int32 array in multiple ways
var int32 = new Int32Array(2);
int32[0] = 42;

var arr = new Int32Array([21,31]);
console.log(arr[1]);

// From an ArrayBuffer
var buffer = new ArrayBuffer(32);
var z = new Int32Array(buffer, 0, 4);

// From an iterable
var iterable = function*(){ yield* [1,2,3]; }();
var arr1 = new Int32Array(iterable);

// Passing int32 Array with values as input
console.log("1." + util.types.isInt32Array(int32));

// Passing a int32 array 0th value as input
console.log("2." + util.types.isInt32Array(arr));

// Passing a int32 array defined by array buffer
console.log("3." + util.types.isInt32Array(z));

// Passing a int32 array defined by iterable
console.log("4." + util.types.isInt32Array(arr1));

Output

C:\home
ode>> node isInt32Array.js
31
1.true
2.true
3.true
4.true