Underscore.js _.isArguments() Function Last Updated : 01 Aug, 2023 Comments Improve Suggest changes Like Article Like Report The _.isArguments() function is used to check whether the given object is an argument or not. It returns a Boolean value True if the given object is an argument and False otherwise. Syntax: _.isArguments( object ) Parameters: This function accepts one parameter as mentioned above and described below: object: This parameter holds the value of object that need to be check whether it is an argument or not. Return Value: It returns True if the given object is an arguments and False otherwise. Example 1: html <!DOCTYPE html> <html> <head> <script type="text/javascript" src= "https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.9.1/underscore-min.js"> </script> </head> <body> <script type="text/javascript"> var arg = (function () { return _.isArguments(arguments); })('Welcome', 'to', 'GeeksforGeeks'); console.log(arg); </script> </body> </html> Output: Example 2: html <!DOCTYPE html> <html> <head> <script type="text/javascript" src= "https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.9.1/underscore-min.js"> </script> </head> <body> <script type="text/javascript"> console.log(_.isArguments(true)); console.log(_.isArguments(1)); console.log(_.isArguments('GeeksforGeeks')); console.log(_.isArguments([1, 2, 3])); </script> </body> </html> Output: Comment More infoAdvertise with us Next Article Underscore.js _.isArguments() Function A ashokjaiswal Follow Improve Article Tags : JavaScript Web Technologies JavaScript - Underscore.js Similar Reads Underscore.js _.isElement() Function The _.isElement() function: is used to check whether the element is a document object model or not. A document object model is the way javascript sees the data of the containing pages. The Cascading style sheet (CSS) and javascript (JS) interact with Document object model (DOM). Syntax:_.isElement(o 3 min read Underscore.js _.isSet() Function Underscore.js is a library in javascript that makes operations on arrays, string, objects much easier and handy. _.isSet() function is used to check whether the given object is javascript set or not. When linking the underscore.js CDN The "_" is attached to the browser as global variable. Syntax: _. 2 min read Underscore.js _.isNaN() Function _.isNaN() function:Â It is used to find whether the value of the object passed is NaN or not.If the object's value is NaN then the output will be true otherwise, it will be false.We can even perform addition, subtraction etc operations in this function. Syntax:Â _.isNaN(object) Parameters:It takes o 3 min read Underscore.js _.isRegExp() Function _.isRegExp() function: It finds whether the object passed is a regular expression or not. If the object is a regular expression then it returns true otherwise false. We can even apply operations like addition etc on the variables in which the result of _.isRegExp() is stored. Syntax: _.isRegExp(obje 3 min read Underscore.js _.isNumber() Function Underscore.js _.isNumber() function is used to check whether the given object parameter is a number or not. If the given object is a number then it returns True value otherwise, it returns False. Syntax:_.isNumber( object );Parameters:object: This parameter holds the object element that needs to be 1 min read Like