You can't access self in your example because it's a local variable within the constructor, so it's not available to your assemble method. You don't need self at all for your example, just use this: class Form { assemble(){ log(this); // *** } } var form = new Form(); form.assemble();

Nov 25, 2014 · var options = { name: 'No name', sayHello: function { console.log(self.name); } } var user1 = new Class(options); var user2 = new Class(options); "this" refers to the object owner of the current function.

There are a couple of ways to get around this problem: 1. Binding the method to the class itself at all times. this.name = name; // binding the `this` context. this.doSomethingElse = this.doSomethingElse.bind(this); // the this in doSomethingElse will always refer the class now. doSomething().then(doSomethingElse) 2.

Apr 2, 2025 · Classes are a template for creating objects. They encapsulate data with code to work on that data. Classes in JS are built on prototypes but also have some syntax and semantics that are unique to classes. For more examples and explanations, see the Using classes guide.

Apr 11, 2025 · Creating classes in JavaScript. Creating constructors in JavaScript. Inheritance and encapsulation in JavaScript. You can declare a class using the class keyword. Here's a class declaration for our Person from the previous article: name; constructor(name) { this.name = name; } introduceSelf() { . console.log(`Hi! I'm ${this.name}`); } }

JavaScript Classes are templates for JavaScript Objects. Use the keyword class to create a class. Always add a method named constructor(): constructor () { ... The example above creates a class named "Car". The class has two initial properties: "name" and "year". A JavaScript class is not an object. It is a template for JavaScript objects.

Nov 16, 2020 · During class instantiation, ‘this’ refers to the new object. ‘self’ is an identifier, It has no special syntactic meaning. Browsers define window.self as window. Self can be redefined...

Dec 1, 2023 · In this article, we'll delve into the inheritance models of Javascript and Python, focusing on the "this" keyword in Javascript and the "self" reference in Python. We often find these concepts perplexing, especially when transitioning between these languages.

In JavaScript, classes are mainly an abstraction over the existing prototypical inheritance mechanism — all patterns are convertible to prototype-based inheritance. Classes themselves are normal JavaScript values as well, and have their own prototype chains.

Dec 12, 2024 · JavaScript classes offer a powerful way to create self-contained components that encapsulate both data and behavior. In this article, we will explore how to use JavaScript classes to build reusable components.