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JavaScript does not have a native interface keyword like Java or C#, but you can simulate interface-like behavior using patterns such as abstract base classes, duck typing, or manual checks. The goal is to define a contract that classes or objects must follow.
1. Using an Object as an Interface Definition You can define an interface as an object containing method signatures, then verify if a class implements them.
// Define the interfaceconst MyInterface = {method1: function () {},method2: function (param1, param2) {}};// Implement the interfaceclass MyClass {method1() {console.log("Method 1 called");}method2(param1, param2) {console.log(`Method 2 called with ${param1} and ${param2}`);}}// Check implementationfunction implementsInterface(obj, interfaceObj) {for (const method in interfaceObj) {if (!(method in obj) || typeof obj[method] !== "function") {return false;}}return true;}const myObject = new MyClass();console.log(implementsInterface(myObject, MyInterface)? "Implements MyInterface": "Does not implement MyInterface");Copied!âś•Copy Implementing Interfaces in JavaScript - GeeksforGeeks
Nov 7, 2023 · However, you can achieve similar functionality by defining and implementing your own interfaces using objects and classes. In this explanation, this article will guide you through …
How to implement interface in javascript - Stack Overflow
Jul 17, 2012 · In JavaScript there are no true "classic" Object-Oriented features, but through clever usage of the language you can emulate an Interface for use with a JavaScript API.
Interfaces in JavaScript
This example demonstrates how to implement interface-like behavior in JavaScript using classes and inheritance, providing a similar structure to the original example while using JavaScript’s …
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Mar 23, 2016 · There are different ways to extend objects in JS: copying properties, using inheritance, adding mixins, and yet there’s no native way to implement interfaces.
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