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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"util.inherits cannot be used with ES6 classes","articleBody":"I'm experimenting with ES6 classes and noticed I was unable to use `util.inherits` to inherit `EventEmitter` into the prototype of my class. \n\n``` javascript\n'use strict';\nvar util = require('util');\nvar EventEmitter = require('events').EventEmitter;\n\nclass x {\n    constructor() {\n        EventEmitter.call(this);\n    }\n    emitEvent() {\n        this.emit('event emitted!');\n    }\n}\n\nutil.inherits(x, EventEmitter); // Fails\n```\n\nThe error is `TypeError: Cannot assign to read only property 'prototype' of \nclass x {\n    constructor() {\n        EventEmitter.call(this);\n    }\n    emitEvent() {\n        this.emit('event emitted!');\n    }\n}`\n\nI was able to get inheritance to work using `class x extends EventEmitter`, but using `extends` means my class can't be a subclass of anything besides `EventEmitter` unless I make `EventEmitter` the root class.\n\nThoughts on this?\n","author":{"url":"https://github.com/zen-crab","@type":"Person","name":"zen-crab"},"datePublished":"2015-10-20T18:42:47.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":11},"url":"https://github.com/3452/node/issues/3452"}