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You are developing a web application that uses web workers to process images extracted from an HTML5 CANVAS object on a web page. You need to pass messages between the web workers and the web page. Which three types of objects should you use? (Each correct answer presents a complete solution. Choose three.)
Correct Answer: A,D,E
Explanation/Reference: * Example: var myHelloWorker = new Worker('helloworkers.js'); You'll then start the worker (and thus a thread under Windows) by sending it a first message: myHelloWorker.postMessage(); Indeed, the Web Workers and the main page are communicating via messages. Those messages can be formed with normal strings or JSON objects. * (E) The Web Workers API makes it possible to execute a JavaScript file asynchronously and autonomously. A web worker is essentially a thread executing a JavaScript file. * (A, D) In the first implementations of web workers the browsers only allowed strings to be exchanged as messages. However, recent implementations allow for exchange of values or JSON objects. Reference: HTML5 Web Workers