The util.types.isFloat64Array() method is an inbuilt application programming interface of the util module which is used to check for Float64Array type in the node.js.
Syntax:
util.types.isFloat64Array( value )
Parameters: This method accepts a single parameter as mentioned above and described below:
- value: It is a required parameter that holds any data type.
Return Value: It returns a boolean value, TRUE if the value is a Float64Array, FALSE otherwise.
Example 1: In the below example illustrates the use of util.types.isFloat64Array() method in Node.js:
// Node.js program to demonstrate the // util.types.isFloat64Array() Method // Allocating util module const util = require( 'util' );
// Passed as parameter to the // util.types.isFloat64Array() method let v1 = new BigInt64Array();
let v2 = new BigUint64Array();
let v3 = new Float32Array();
let v4 = new ArrayBuffer();
let v5 = new Float64Array();
// Printing the returned value from // util.types.isFloat64Array() method console.log(util.types.isFloat64Array(v1)); console.log(util.types.isFloat64Array(v2)); console.log(util.types.isFloat64Array(v3)); console.log(util.types.isFloat64Array(v4)); console.log(util.types.isFloat64Array(v5)); |
Output:
false false false false true
Example 2: In this example, we will illustrate the use of util.types.isFloat64Array() method in Node.js:
// Node.js program to demonstrate the // util.types.isFloat64Array() Method // Allocating util module const util = require( 'util' );
// To be passed as parameter of // util.types.isFloat64Array() method let v1 = new Float64Array();
let v2 = new Float64Array();
// Calling util.types.isFloat64Array() method if (util.types.isFloat64Array(v1))
console.log( "The passed value is a Float64Array." );
else console.log( "The passed value is not a Float64Array" );
if (util.types.isFloat64Array(v2))
console.log( "The passed value is a Float64Array." );
else console.log( "The passed value is not a Float64Array" );
|
Output:
The passed value is not a Float64Array The passed value is a Float64Array.
Note: The above program will compile and run by using the node filename.js command.