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You Don't Know JS: ES6 & Beyond"font style: normal; font variant: normal; font weight: normal; letter spacing: normal; line height: 15px; orphans: auto; text align: justify; text indent: 0px; text transform: none; white space: normal; widows: 1; word spacing: 0px; webkit text stroke width: 0px; color: rgb(51, 51, 51); font family: Arial, Verdana, Geneva, Helvetica, sans serif; font size: 12px; background color: rgb(255, 255, 255);"No matter how much experience you have with
"font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 15px; orphans: auto; text-align: justify; text-indent: 0px; text-transform: none; white-space: normal; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px; color: rgb(51, 51, 51); font-family: Arial, Verdana, Geneva, Helvetica, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255);"No matter how much experience you have with JavaScript, odds are you dont fully understand the language. As part of the "You Dont Know JS" series, this compact guide focuses on new features available in ECMAScript 6 (ES6), the latest version of the standard upon which JavaScript is built."font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 15px; orphans: auto; text-align: justify; text-indent: 0px; text-transform: none; white-space: normal; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px; color: rgb(51, 51, 51); font-family: Arial, Verdana, Geneva, Helvetica, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255);"Like other books in this series, You Dont Know JS: ES6 & Beyond dives into trickier parts of the language that many JavaScript programmers either avoid or know nothing about. Armed with this knowledge, you can achieve true JavaScript mastery."font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 15px; orphans: auto; text-align: justify; text-indent: 0px; text-transform: none; white-space: normal; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px; color: rgb(51, 51, 51); font-family: Arial, Verdana, Geneva, Helvetica, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255);"With this book, you will: Learn new ES6 syntax that eases the pain points of common programming idioms Organize code with iterators, generators, modules, and classes Express async flow control with Promises combined with generators Use collections to work more efficiently with data in structured ways Leverage new API helpers, including Array, Object, Math, Number, and String Extend your programs capabilities through meta programming Preview features likely coming to JS beyond ES6Shipping Notes
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4.3 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 1
These shoes ARE NOT LEATHER as advertised!
Size: 14, Color: Black
I own 4 pair of Marc Joseph shoes. All were Amazon advertised as Leather uppers and received as such. Made in Brazil out of real leather. Good quality shoes and a fair price. My recent purchases of 2 pair of Marc Jospeh shoes are Amazon advertised as" Leather Uppers". They are NOT leather and I sent them back to Amazon. Made in China. To me this is a bait and switch. Product descriptions should be honest and complete and reveal origin. My previous purchases stated "Made in Brazil" and "Leather Uppers." Since they were Marc Joseph, I thought these 2 recent pair were creditably described so I ordered based on my prior satisfied experience. Shame on me. Marc Joseph has lost a loyal customer.
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Reviewed in the United States on January 30, 2025
★★★★★ 5
Great shoes
Size: 12, Color: Black
These are great. We buy them again and again
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Reviewed in the United States on May 4, 2026
★★★★★ 5
Sleek and classy loafer
Size: 10.5, Color: Black
Was skeptical on this purchase but I have to say, well worth it. Not super expensive but very comfortable. Wears well for summer dress attire for taking your lady out for a dinner or show. Casual yet classy.
Not a bad buy.
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Reviewed in the United States on March 14, 2026
★★★★★ 5
Great price great shoe
Size: 12, Color: Burgundy Polished Full Grain
Excellent shoe. Tried the Sebago penny loafer and the sizing was ridiculous. These J and M are sized perfectly. I’ve had them before and they wear like iron. Very comfortable right out of the box.
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Reviewed in the United States on May 23, 2026
★★★★★ 5
One of the best shoes
Size: 9.5, Color: Black Polished Full Grain
Outstanding. Fashionable, most comfortable and good construction. No sines of use after quite some time. Highly recommended.
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Reviewed in the United States on March 21, 2026