Question

How can we make methods available on all objects? (a) Object.add(methods) (b) Object.methods(add) (c) Object.add.methods(…) (d) Object.prototype I have been asked this question in final exam. The query is from Augmentation of Classes in chapter Classes and Modules in JavaScript of JavaScript Select the correct answer from above options JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

Right choice is (d) Object.prototype Easiest explanation: It is possible to add methods to Object.prototype, making them available on all objects. This is not recommended, however, because prior to ECMAScript5, there is no way to make these add-on methods non enumerable, and if you add properties to Object.prototype, those properties will be reported by all for/in loops.