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How does prototypal inheritance work in JavaScript?(2 Points)It allows objects to inherit properties from their prototypesIt creates new prototypes for each objectIt is not supported in JavaScriptIt copies properties from one object to another

Question

How does prototypal inheritance work in JavaScript?(2 Points)It allows objects to inherit properties from their prototypesIt creates new prototypes for each objectIt is not supported in JavaScriptIt copies properties from one object to another

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Solution

Prototypal inheritance in JavaScript works in the following way:

  1. It allows objects to inherit properties from their prototypes: In JavaScript, each object has a prototype (which is also an object), and inherits its properties and methods. When you create a new object, you can choose to set its prototype to an existing object. This means that the new object will have access to the existing object's properties and methods.

  2. It does not create new prototypes for each object: Instead, when an object is created, it can be linked to an existing prototype. The same prototype can be shared among multiple objects, allowing them to all inherit the same properties and methods.

  3. It is supported in JavaScript: Prototypal inheritance is a fundamental part of JavaScript and is supported in all modern browsers.

  4. It does not copy properties from one object to another: Instead of copying properties, prototypal inheritance sets up a link between the object and its prototype. When a property is accessed on an object, JavaScript will first look for the property on the object itself. If it doesn't find it there, it will then look for the property on the object's prototype. This process continues up the prototype chain until the property is found or the top of the chain is reached.

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