Node.js util.types.isFloat64Array() Method
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:
javascript
// 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:
javascript
// 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.