SKU: 26387724828

You Don't Know JS: Scope & Closures

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Description

You Don't Know JS: Scope & Closures"No matter how much experience you have with JavaScript, odds are you dont fully understand the language. This concise yet in depth guide takes you inside scope and closures, two core concepts you need to know to become a more efficient and effective JavaScript programmer. Youll learn how and why they work, and how an understanding of closures can be a powerful part of your development skillset."margin top: 4px; margin bottom: 14px; padding: 0px; font

"No matter how much experience you have with JavaScript, odds are you dont fully understand the language. This concise yet in-depth guide takes you inside scope and closures, two core concepts you need to know to become a more efficient and effective JavaScript programmer. Youll learn how and why they work, and how an understanding of closures can be a powerful part of your development skillset."margin-top: -4px; margin-bottom: 14px; padding: 0px; font-family: Arial, sans-serif; line-height: 22.4px; text-align: justify; background-color: rgb(255, 255, 255);"Like other books in the "You Dont Know JS" series, Scope and Closures dives into trickier parts of the language that many JavaScript programmers simply avoid. Armed with this knowledge, you can achieve true JavaScript mastery.
Learn about scope, a set of rules to help JavaScript engines locate variables in your code
Go deeper into nested scope, a series of containers for variables and functions
Explore function- and block-based scope, hoisting�, and the patterns and benefits of scope-based hiding
Discover how to use closures for synchronous and asynchronous tasks, including the creation of JavaScript libraries

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SKU: 26387724828

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4.1 ★★★★★
Based on 788 reviews
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Amy Morley
Massapequa, US
★★★★★ 4
Very soft, not firm at all
This pillow is very floppy and not firm at all. It is quite large and I was surprised at the size. My dog has taken a liking to it and decided it's now her new dig bed, which is fine by me, because it's really too soft for my liking. If you like soft pillows then this is for you. If you require something with a bit more support then you won't enjoy this pillow.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2025
R
Ronnie
Massapequa, US
★★★★★ 5
Soft and supportive
I recently purchased the this pillow and I am happy with the quality and comfort it provides. Pillow is soft, plush, and supportive without being too firm. The down alternative fill offers the balance of fluffiness and structure, making them ideal for all sleep positions. Whether I’m sleeping on my back, side, or stomach, these pillows adapt beautifully and keep me comfortable throughout the night. They’re also breathable and skin-friendly, which is a huge plus for anyone with sensitive skin. After using them, I wake up feeling well-rested and free of neck stiffness. I like it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2025
H
Honest Reviews
West Palm Beach, US
★★★★★ 5
Pillow
These DIORIS pillows are a game-changer! I’ve tried many pillows over the years, but these are by far the best. The down alternative fill is incredibly soft yet supportive, providing just the right amount of fluffiness without feeling too firm or too soft. I sleep on my side, and these pillows cradle my head and neck perfectly, giving me the support I need for a restful night. They’re breathable and skin-friendly, which is great since I tend to get hot while I sleep. The queen size is just right for my bed, and the pillows maintain their shape night after night. They feel like luxury hotel pillows! Highly recommend for anyone looking for a comfortable, supportive, and durable pillow.
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Reviewed in the United States on May 20, 2025
J
Jackiee
Belleville, US
★★★★★ 5
this pillow does work
For months my neck had been brothering me every morning when I woke up. Figured it was stress and I always planned on getting a massage. But I never did it. I ended up seeing this pillow on Amazon and got it. It was almost an instant 180. My neck pain is gone! This pillow is stuffed very full but isn't super firm. It's a bit hard to describe. The seams are well sewn and the pillow has held up very well for a week now. No weird smells or any type of red flag that I found. It's easy to flip and reshape in an instant.
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Reviewed in the United States on May 15, 2025
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Pamdirac
Houston, US
★★★★★ 5
Comfortable to use with firm support
This set of queen-size pillows has a great balance between softness and support. The down alternative fill feels plush and comfortable. The pillows also provide enough firmness to support the neck and shoulders. A better sleep quality achieved with less tossing and turning. For sleeping on side, back, or stomach, the pillows keep their shape and offer consistent comfort. A good choice for the improvement of sleep quality with more comfort.
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Reviewed in the United States on June 11, 2025

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