The v8.getHeapStatistics() method returns the statistics about a heap. The getHeapStatistics() method is a part of the v8 module that returns the details about the heap and size of the v8. The getHeapSpaceStatistics() gives stats based upon the spaces in a system, whereas the getHeapStatistics() method gives stats about the ... Read More

You can use the chalk module to customize the statements printed on the console.By using it, one can change the text font-color to any color. One can also change the font-style to Bold, Italic or Underlined. Also, you can highlight the printed text.Syntaxnpm install chalkExample 1Create a file "color.js" and ... Read More

Node.js is a completely open source technology that runs on JavaScript runtime environment. When the users want to access a website or link, they connect with the link using their system IP. We can use the dns.lookup() method in Node to find the IP address of the current user.Syntaxdns.lookup(hostname, [options], ... Read More

The util.types.isUint16Array() method checks whether the passed value is a builtin Uint16Array instance or not. If the above condition is satisfied, it returns True, else False.Syntaxutil.types.isUint16Array(value)ParametersIt takes a single parameter −value − This input value takes input for the required parameter and checks if it's a Uint16Array instance or not.It ... Read More

The util.types.isNativeError() method checks whether the passed value is a built-in error type or not. If the above condition is satisfied, it returns True, else False. The error can be of any type.Syntaxutil.types.isNativeError(value)ParametersIt takes a single parameter −value − This input value takes input for the required parameter and checks ... Read More

The util.types.isInt8Array() method checks whether the passed value is a built-in Int8Array instance or not. If the above condition is satisfied, it returns True, else False.Syntaxutil.types.isInt8Array(value)ParametersIt takes a single parameter −value − This input value takes input for the required parameter and checks if it's an Int8Array instance or not.It ... Read More

The util.types.isAnyArrayBuffer() checks whether the passed value is an ArrayBuffer or a SharedArrayBuffer instance. It returns True if the above condition holds, else False.Syntaxutil.types.isAnyArrayBuffer(value)ParametersIt takes a single parameter −value − This input parameter takes input for the required datatype and checks if it's an ArrayBuffer or SharedArrayBuffer instance.It returns True ... Read More

The util.types.isFloat32Array() method checks whether the passed value is a builtin Float32Array instance or not. If the above condition is satisfied, it returns True, else False.Syntaxutil.types.isFloat32Array(value)ParametersIt takes a single parameter −value − This input value takes input for the required parameter and checks if it's a Float32-Array instance or not.It ... Read More

The util.types.isDate() method checks whether the passed value is a built-in Date instance or not. If the above condition is satisfied, it returns True, else False.Syntaxutil.types.isDate(value)ParametersIt takes a single parameter −value − This input value takes input for the required parameter and checks if it's a Date instance or not.It ... Read More

The util.getSystemErrorName() method is used for returning the string name of the numeric error code that is returned from the Node.js API. There is a mapping between the error codes and error names which is platform-dependent.Syntaxutil.getSystemErrorName(err)ParametersIt takes a single parameter −err −This parameter takes input as a numeric value that ... Read More