{"product_id":"9781491905203","title":"You Don't Know JS: Async \u0026 Performance","description":"\u003cp\u003eNo matter how much experience you have with JavaScript, odds are you don’t fully understand the language. As part of the \"You Don’t Know JS\" series, this concise yet in-depth guide focuses on new asynchronous features and performance techniques—including Promises, generators, and Web Workers—that let you create sophisticated single-page web applications \u003ci\u003eand\u003c\/i\u003e escape callback hell in the process.\u003c\/p\u003e\u003cp\u003eLike other books in this series, \u003ci\u003eYou Don’t Know JS: Async \u0026amp; Performance\u003c\/i\u003e dives into trickier parts of the language that many JavaScript programmers simply avoid. Armed with this knowledge, you can become a true JavaScript master.\u003c\/p\u003e\u003cp\u003eWith this book you will:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExplore old and new JavaScript methods for handling asynchronous programming\u003c\/li\u003e\n\u003cli\u003eUnderstand how callbacks let third parties control your program’s execution\u003c\/li\u003e\n\u003cli\u003eAddress the \"inversion of control\" issue with JavaScript Promises\u003c\/li\u003e\n\u003cli\u003eUse generators to express async flow in a sequential, synchronous-looking fashion\u003c\/li\u003e\n\u003cli\u003eTackle program-level performance with Web Workers, SIMD, and asm.js\u003c\/li\u003e\n\u003cli\u003eLearn valuable resources and techniques for benchmarking and tuning your expressions and statements\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"O'Reilly Media, Incorporated","offers":[{"title":"Default Title","offer_id":47136509264112,"sku":"9781491905203","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/9781491905203_p0.jpg?v=1763661355","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9781491905203","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}