Node.js – util.types.isUint8ClampedArray() Method

The util.types.isUint8ClampedArray() method checks whether the passed value is a built-in Uint8ClampedArray instance or not. If the above condition is satisfied, it returns True, else False.

Syntax

util.types.isUint8ClampedArray(value)

Parameters

• value − This input value takes input for the required parameter and checks if it's a Uint8ClampedArray instance or not.

It returns True or False based upon the input value passed.

Example 1

Create a file with the name "isUint8ClampedArray.js" and copy the following code snippet. After creating the file, use the command "node isUint8ClampedArray.js" to run this code.

// util.types.isUint8ClampedArray() Demo Example

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

// Passing normal Int8-Array as input value
console.log("1." + util.types.isUint8ClampedArray(new Int8Array()));

// Passing a Uint8ClampedArray array instance as input
console.log("2." + util.types.isUint8ClampedArray(new Uint8ClampedArray()));

// Passing a Int16 array as input
console.log("3." + util.types.isUint8ClampedArray(new Int16Array()));

Output

C:\home
ode>> node isUint8ClampedArray.js
1.false
2.true
3.false

Example 2

// util.types.isUint8ClampedArray() Demo Example

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

var uintc8 = new Uint8ClampedArray(2);
uintc8[0] = 21;

// From an array
var arr = new Uint8ClampedArray([21,31]);
console.log(arr[1]);

// From an ArrayBuffer
var buffer = new ArrayBuffer(8);
var z = new Uint8ClampedArray(buffer, 1, 4);

// From an iterable
var iterable = function*(){ yield* [1,2,3]; }();
var arr1 = new Uint8ClampedArray(iterable);

// Passing float32 Array with values as input
console.log("1." + util.types.isUint8ClampedArray(uintc8));

// Passing a float32 array 0th value as input
console.log("2." + util.types.isUint8ClampedArray(arr));

// Passing a float32 array defined by array buffer
console.log("3." + util.types.isUint8ClampedArray(z));

// Passing a float32 array defined by iterable
console.log("4." + util.types.isUint8ClampedArray(arr1));

Output

C:\home
ode>> node isUint8ClampedArray.js
31
1.true
2.true
3.true
4.true

Mayank Agarwal

e

Updated on: 17-Aug-2021

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