Node.js util.types.isUint8Array() Method

// Node.js program to demonstrate the    
// util.types.isUint8Array() method 
  
// It includes util module 
const util = require('util'); 
  
// Return false as passed instance is of set 
console.log(util.types.isUint8Array(new Set())); 
  
// Return true as passed instance is of Uint8Array 
console.log(util.types.isUint8Array(new Uint8Array())); 

// Node.js program to demonstrate the    
// util.types.isUint8Array() method

// It includes util module
const util = require('util');

// Making an instance of Uint8Array
// of size 2
const array1 = new Uint8Array(2);

// Initializing the zeroth element
array1[0] = 42;

// Returns true as passed instance
// is of Uint8Array
console.log(util.types.isUint8Array(array1));

// Making an instance of Uint8Array
const array2 = new Uint8Array([21, 31]);

// Returns true as passed instance
// is of Uint8Array
console.log(util.types.isUint8Array(array2));

// Making an instance of Uint8Array
const array3 = new Uint8Array([21, 31]);

// Making another instance of Uint8Array by
// passing an instance of Uint8Array
const array4 = new Uint8Array(array3);

// Returns true as passed instance
// is of Uint8Array
console.log(util.types.isUint8Array(array4));

// Making an instance of Int16Array of size 2
const array5 = new Int16Array(2);

// Initializing the zeroth element
array5[0] = 10;

// Returns false as passed instance
// is of Int16Array
console.log(util.types.isUint8Array(array5));