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Editor to share with you how JavaScript in the constructor to add methods to the object, I believe that most people do not understand, so share this article for your reference, I hope you will learn a lot after reading this article, let's go to know it!

Add a method to the object in the constructor / / add a method to the object var fun = function () {}; / / define the function object fun.prototype.test = function () {alert ('this is used in the constructor when adding the test method on the original object on the foo function);} / / call var myfun = new fun (); / / create object myfun.test (); / / call object properties

Add a method through the prototype keyword.

What are the characteristics of JavaScript? 1. Js belongs to an explanatory scripting language. 2. With the support of most browsers, js can run on multiple platforms and has cross-platform characteristics. 3. Js is a weakly typed scripting language that does not make strict requirements on the data types used. It is able to type conversion, simple and easy to use. 4. Js language is highly secure, and it can only browse information or interact dynamically through the browser, so as to effectively prevent the loss of data. 5, object-based scripting language, js can not only create objects, but also use existing objects.

That's all of the article "how JavaScript adds methods to objects in the constructor". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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