shopetefy09

TypeScript has conquered the world of JavaScript: it’s one of the world’s fastest growing and most popular languages across developer surveys, widely used in consumer and business companies alike, and frequently credited for helping massive web applications scale. But what is TypeScript? How does it work, why does it work, and how can we use it?

Learning TypeScript takes beginner to intermediate JavaScript programmers from knowing nothing about “types” or a “type system” to full mastery of the fundamentals of TypeScript. It’s more than a means to find bugs and typos–it’s a useful system for declaring the way our JavaScript should work and helping us stick to it. You’ll learn how TypeScript:

interacts with JavaScript analyzes and understands code augments your existing development pattern helps you document your code works with IDEs to provide refactoring tools assists local development in refactoring code helps you develop more quickly with fewer bugs

From the brand

Explore more Typescript

or explore JavaScript

More from O’Reilly

Sharing the knowledge of experts

O’Reilly’s mission is to change the world by sharing the knowledge of innovators. For over 40 years, we’ve inspired companies and individuals to do new things (and do them better) by providing the skills and understanding that are necessary for success.

Our customers are hungry to build the innovations that propel the world forward. And we help them do just that.

Publisher ‏ : ‎ O’Reilly Media
Publication date ‏ : ‎ July 12, 2022
Edition ‏ : ‎ 1st
Language ‏ : ‎ English
Print length ‏ : ‎ 317 pages
ISBN-10 ‏ : ‎ 1098110331
ISBN-13 ‏ : ‎ 978-1098110338
Item Weight ‏ : ‎ 2.31 pounds
Dimensions ‏ : ‎ 7 x 0.5 x 9.25 inches
Best Sellers Rank: #123,313 in Books (See Top 100 in Books) #12 in JavaScript Programming (Books) #55 in Introductory & Beginning Programming #74 in Software Development (Books)
Customer Reviews: 4.5 4.5 out of 5 stars (118) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });

From the brand

Enjoy Sale

Enjoy New Products-Configuration Upgrades

Max 20% off, Additional Discounts for Business Buyers

The Versatile Mini PC You Need

The Versatile Mini PC You Need

The Versatile Mini PC You Need

KAMRUI are an integrated high-tech enterprise of computer technology committed to R&D, production, and sales of smart products like Mini PC, and pc stick.KAMRUI Mini PCs blend a stylish design, high-performance professional features and an incredible end-user experience for office and home use, gaming, business, home entertainment, and so on.

Ryzen 7 6800H Processor: The KAMRUI Mini PC comes with AMD Ryzen 7 6800H (8C/16T up to 4.7GHz) processor. The faster performance can handle heavy computing tasks smoothly and better for multitasking. It widely used for office, image editing, browsing, watching movies, programming etc.
32GB RAM 1TB SSD: Equipped with 32GB LPDDR5 6400MHz RAM and a lightning-fast 1TB M.2 2280 NVMe PCIe3.0x4 SSD, you have the space and speed for your needs.
Amazing Visuals and Multitasking: This mini pc has an awesome graphics card that makes everything look great on your screen. It can even handle three screens at once, so you can do lots of things at the same time, like work, watch videos, or play games.
Powerful Computing Anywhere: With its compact design, this mini PC easily fits in any space, whether it’s your home office, living room, or a cozy desk. Take the portable pc with you for powerful computing capabilities on the go, no matter where you need them.
Why KAMRUI: Easy to learn, Easy to set up. KAMRUI micro computer preinstalled with OS out of the box. KAMRUI mini pc small and exquisite, It can be put in a bag and taken away at any time, ideal for business travel. KAMRUI includes 1 x Ryzen 7 6800H Mini PC, 1 x Power Adapter, 1 x VESA Mount, 1 x User Manual, 1 x HDMI Cable, 1 year quality after sales service.
Brand: KAMRUI, Model: H1, Manufacturing Company: Shenzhen CYX Industrial Co Ltd

The ultimate all-out warfare experience. Fight in high-intensity infantry combat. Rip through the skies in aerial dogfights. Demolish your environment for a strategic advantage. Harness complete control over every action and movement using the Kinesthetic Combat System. In a war of tanks, fighter jets, and massive combat arsenals—the deadliest weapon is your squad. This is Battlefield 6.

MULTIPLAYER
Victory, however you envision it. Battlefield 6 has more ways to win than ever before. Seize glory in iconic, large-scale modes including Conquest, Breakthrough, and Rush. Jump into fast-paced action with King of the Hill, Domination, and Payload. Change the rules of war with the revamped and refined Battlefield Portal. Fight in iconic locations all over the world including Cairo, Brooklyn, Gibraltar and more.

GLOBAL SCALE CAMPAIGN
Campaign is back. Drive tanks across the Sahara. Storm the beaches of Gibraltar. Defend New York from invasion. Join an elite squad of Marine Raiders fighting relentlessly to save a world on the edge of collapse.

PORTAL
Redraw the lines of battle. Battlefield Portal is a massive sandbox where creators and players can push Battlefield to the limit. Take unprecedented control of your environment by moving, scaling, and duplicating objects. Create a completely unique game mode using NPC scripting and a customizable UI. Your creation can even rise the ranks to become an official Battlefield mode. Show ‘em what you’re made of.

THE NEW STANDARD OF FPS COMBAT: With overhauled gunplay and tactical movement, from crouch sprint to drag and revive, every shot and movement is more instinctual and precise.The ultimate all-out warfare experience.This is Battlefield 6.
MULTIPLAYER Victory, however you envision it. Battlefield 6 has more ways to win than ever before.
GLOBAL SCALE CAMPAIGN Join an elite squad of Marine Raiders fighting relentlessly to save a world on the edge of collapse.
PORTAL Battlefield Portal is a massive sandbox where creators and players can push Battlefield to the limit. Take unprecedented control of your environment by moving, scaling, and duplicating objects.

From the brand

[ Built-in Official Licensed Google TV ] – Without additional equipment, the smart projector can directly access Netflix, Prime Video, YouTube, Hulu, and other applications. It greatly reduces the complexity of operation and makes watching movies more convenient
[ Google Voice Assistant ] – Simply press and hold the voice control button and issue a simple voice command to quickly open Netflix, search for a movie, adjust the volume, or check the weather without fiddling with the mini projector remote buttons
[ Excellent 4K Picture Quality ] – The HAPPRUN 4K projector supports 4K resolution, delivering clear and detailed images. With a brightness of 400 ANSI lumens, it guarantees bright and vivid visuals even in well-lit environments, perfect for indoor and outdoor use
[ Powerful Sound Effect ] – The outdoor projector features a built-in 5W high-fidelity speaker and supports Dolby sound effects, delivering clear and balanced audio. Whether it’s deep bass or high-frequency details, the sound quality is immersive and realistic
[ Wide Compatibility ] – The projector with Wi-Fi and Bluetooth supports a wide range of devices, including USB drives, smartphones, computers, tablets, and game consoles, enabling seamless playback

Switching out of S mode in Windows 11
Windows 11 in S mode is designed for security and performance, exclusively running apps from the Microsoft Store. If you want to install an app that isn’t available in the Microsoft Store, you’ll need to switch out of S mode

1. On your PC running Windows 11 in S mode, open Settings > System > Activation.

2. In the Switch to Windows 11 Pro section, select Go to the Store. (If you also see an “Upgrade your edition of Windows” section, be careful not to click the “Go to the Store” link that appears there.)

3. On the Switch out of S mode (or similar) page that appears in the Microsoft Store, select the Get button. After you see a confirmation message on the page, you’ll be able to install apps from outside of the Microsoft Store.

HP 14 inch Laptop for Business and Student:

Sleek design: Easily take this thin and light PC from room to room or on the road

Dual array microphones: With two microphones and advanced noise reduction software, you’ll always sound crystal clear when you video chat or record

Display: 14.0-inch diagonal, HD (1366 x 768), micro-edge, BrightView

Processor: Intel Celeron N4120, 4 Cores & 4 Threads

Memory: 8GB DDR4

Storage: 64GB eMMC+128GB Micro SD

Graphics: Intel UHD Graphics 600

Operating System: Windows 11 Home in S mode

HP Fast Charge: Go from 0 to 50% charge in approximately 45 minutes

Battery Life: Up to 11 hours and 30 minutes (video playback); Up to 9 hours (wireless streaming)

Webcam: HP True Vision 720p HD camera with integrated dual array digital microphones

Connectivity: 802.11a/b/g/n/ac (2×2)(19a) Wi-Fi and Bluetooth combo

Dimensions: 12.76 x 8.86 x 0.71 inches

Weight: 3.24 lbs

【Intel Celeron Processor】Powered by the Intel Celeron processor (Beat i3), this HP laptop delivers reliable performance for your everyday needs. Smoothly handle web browsing, document editing, and video streaming, making it a perfect home office laptop and a good laptop for college students.
【14 inch Display】Enjoy a maximized view on the 14 inch HD display. The innovative Micro-edge design minimizes the bezel for an ultra-wide viewing experience, ideal for online learning, reviewing documents, or watching movies.
【RAM & Storage upgradable】Upgraded to 8GB high-bandwidth DDR4 Memory, Adequate high-bandwidth RAM to smoothly run multiple applications and browser tabs all at once. 【Ports】1 x USB 3.1 Type-C ports, 2 x USB 3.1 Type-A ports, 1 x HDMI, 1 x Headphone/Microphone Combo Jack, and there’s a microSD slot. Ghost Manta SD card.
【Immersive & Portable】Designed to be ultra-thin and lightweight, this HP laptop is your go-to portable laptop for work and school. It easily slips into a backpack, so you can study at the library or work from your favorite coffee shop without any hassle.
【Ultimate Student&Daily Notebook 】 This is the cheap laptop for everyday use you’ve been looking for. A trusted student laptop for classes and a reliable home office laptop for remote work, it combines essential features, HP quality, and exceptional value into one versatile machine.

Product description

Whether it’s a long car ride, a family vacation, a playdate, or just a rainy day at home, this handheld console keeps kids entertained anywhere, anytime. The carefully curated mix of puzzles, adventures, sports, and educational games boosts logical thinking, enhances hand-eye coordination, and ensures safe, wholesome fun—no inappropriate content here! With over 6 hours of playtime on a single charge, it’s a boredom-buster that parents and kids alike will love.

Warm Tips:

Before using the product, please read the instructions carefully.This version does not support the function of saving game progress.The complete list of games can be accessed via the “Game Menus” icon on the Main Menu interface!

What’s in The Box ?

1 × X-JOYKIDS Bluered Handheld Game1 × Rechargeable Lithium Battery1 × Easy-to-Follow User Manual1 × USB Charging Cable

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Customer Reviews

4.3 out of 5 stars 135

4.3 out of 5 stars 135

4.3 out of 5 stars 135

4.3 out of 5 stars 135

4.3 out of 5 stars 135

Price

$34.99$34.99 $34.99$34.99 $34.99$34.99 $35.99$35.99 $35.99$35.99

Screen size
3.5 inch 3.5 inch 3.5 inch 3.5 inch 3.5 inch

【Make Choosing Gifts for Children Easier】: What gift does the child hope to receive on his birthday? Of course it is a toy that can bring him happiness! This QS6-16Bit handheld game console is your best choice!In the process of playing, your kids can not only enjoy the joy of the game, but also learn new skills and exercise the thinking and problem-solving skills.
【Enjoy The Endless Joy of the 216 Classic Games】: Preloaded 216 classic popular games, take you into a colorful, happy and exciting game kingdom. Inside, they will encounter a variety of different challenges: racing, track and field, logic, puzzles, sports and adventure games, etc.Improve Children’s hand-eye coordination, thinking and problem-solving skills.
【Excellent Gaming Visual Experience】: With a 3.5 inch IPS display,the larger and clearer gaming screen not only protect children’s eyesight but provides an excellent visual experience for video games. Warm tip: Please tear off the protective film before use.
【Rechargeable Childhood Time Machine】:The Handheld Games is equipped with an 1800mAh lithium-ion battery,can provides 6+ hours of uninterrupted play time by fully charged, A must-have for travel. It is designed according to the children ’s small hands，ensures a comfortable grip,the color is cute,screen is big,easy to use, is a game console suitable for kids gaming player beginner.
【Surprising Gift for Kids Teenagers Adults 】 This retro handheld game systems is perfect as a best gift on birthdays, Christmas,Easter,Halloween,Thanksgiving,and other festivals. To put the environmental concept into practice,our game console is designed with a “gift – box – style packaging” right from the factory. It can be directly given as a gift without the need for secondary packaging, reducing the waste of packaging materials at the source.

From the brand

Philips 4200 Series

WiFi Smart Keypad Deadbolt with Door Levers.

WiFi Smart Lock with Handle

Direct Connect to WiFi, No Bridge Needed

Find Your Perfect Lock

Front door

Backyard

Apartment

Garage

Connect to 2.4GHz WiFi, No Hub Needed：Connect your Philips 4200 Series Wifi Door Lock Deadbolt directly to your home WiFi network—no extra hub or bridge required. Manage your door anytime, anywhere through your smartphone.
App Control with Real-Time Access：Control smart lock remotely via the Philips Home Access App: lock/unlock, manage user codes/fingerprints, check your door lock status, and monitor access history in real time, etc, whether you’re at work or on vacation.
Voice Assistant Compatible：Hands full? No problem. Use voice commands with Alexa or Google Assistant to lock or check the status of your front door lock set effortlessly.
0.3S Fingerprint Fast Access：With this fingerprint keyless entry door lock, unlock your door in 0.3 seconds with fast, secure biometric access. Store multiple fingerprints for family and trusted visitors.
Versatile Passcode Options: This Keypad deadbolt supports permanent, one-time, periodic, and recurring PIN codes—perfect for family, guests, housekeepers, or Airbnb use. Easily manage and share access through the app for ultimate convenience and control.
No More Forgotten Lock: Set your door to auto-lock in 0–180 seconds through the app—perfect for busy mornings or forgetful moments. Easily check your lock status anytime in the app, so you’ll never worry about whether the door was locked again.
Complete Handle Set Included：Comes with a matching handle set for a sleek, all-in-one front door lock set — the perfect smart lock for front door upgrade with no need to buy extra hardware.
𝐓𝐢𝐦𝐞𝐥𝐲 𝐂𝐮𝐬𝐭𝐨𝐦𝐞𝐫 𝐒𝐞𝐫𝐯𝐢𝐜𝐞：Philips US-based team is available by phone Mon-Fri 8AM – 8PM & Sat 9AM -5PM PST, plus 24/7 via email. We’re here when you need us.
𝗘𝗮𝘀𝘆 𝗜𝗻𝘀𝘁𝗮𝗹𝗹𝗮𝘁𝗶𝗼𝗻: Compatible with most doors 1-3/8″ to 1-3/4″ (38mm to 50mm) thick. 𝗣𝗹𝗲𝗮𝘀𝗲 𝗰𝗵𝗲𝗰𝗸 𝘆𝗼𝘂𝗿 𝗱𝗼𝗼𝗿 𝘀𝗶𝘇𝗲 𝗯𝗲𝗳𝗼𝗿𝗲 𝗽𝘂𝗿𝗰𝗵𝗮𝘀𝗲. Install it yourself in minutes using just a screwdriver. Note: 1. Please use 8 AA alkaline batteries(not included) 2. Please press and hold the reset button for 5 seconds to activate the lock. 3. Please check the installation video on the details page for installation.

Webroot scours 95% of the Internet three times per day including billions of web pages, files, and apps to determine what is safe online and enhances the software automatically so you don’t have to perform any time-consuming updates. Our cloud-based antivirus software scans faster, uses fewer system resources and safeguards your devices in real-time by identifying and blocking new threats. Webroot protects your personal information against online threats and warns you of potential danger before you click. Installs in seconds and with its rollback technology automatically returns infected device to their original state.
Is Discontinued By Manufacturer ‏ : ‎ No
Product Dimensions ‏ : ‎ 5.2 x 0.5 x 7.5 inches; 0.01 ounces
Item model number ‏ : ‎ 60208
Date First Available ‏ : ‎ September 13, 2013
Manufacturer ‏ : ‎ Webroot Genuine
ASIN ‏ : ‎ B00EZKNYWC
Best Sellers Rank: #77 in Software (See Top 100 in Software) #30 in Internet Security Suites #43 in Mac Software
Customer Reviews: 4.3 4.3 out of 5 stars (1,566) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });

STAY PROTECTED EVERYWHERE you go, at home, in a café, at the airport—everywhere—on ALL YOUR DEVICES, with cloud-based protection against viruses & other online threats
Webroot PASSWORD MANAGER by Last Pass creates, encrypts, and saves all your passwords, so you only have to remember one.
As the #1 TRUSTED PROVIDER OF THREAT INTELLIGENCE, you know you’re in good hands. Stay safe from viruses, ransomware, phishing, and more.
Webroot SOFTWARE UPDATES ITSELF AUTOMATICALLY, so you always have the most current protection without lifting a finger—and updates happen in the background so they won’t slow you down.
PREMIUM FEATURES: Encrypts & protects passwords and account information for all your devices so you can stay protected wherever you are.

Processor: 13th Generation Intel Core i5-1334U (12MB Cache, 10 cores, 12 threads, 4.60 GHz) Processor

Graphics: Intel UHD Graphics

Operating system: Windows 11 Home

Memory: 12 GB DDR4

Hard Drive: 768GB Storage (256GB PCIe SSD + 512GB External)

Display: 15.6-inch FHD+ (1920 x 1200) Anti-Glare LED Backlight Touch Narrow Border WVA Display

Connectivity: Wi-Fi 6 + and Bluetooth 5.0

Audio and Speakers: Dual Speaker

Keyboard: US English, Full Size Keyboard

Built-in HD Webcam: Integrated 720p Webcam ​

Ports:

1 x USB-A 2.0

1 x USB-A 3.2

1 x USB-C 3.2

1 x HDMI 1.4

1 x Headset Jack

1 x SD Card Reader

Battery: 3-Cell 41Hr Battery, up to 9 hours

Color: Black

Dimensions L x W x H (inches): 14.11 x 9.27 x 0.75

Weight: 3.66 lbs

【Powerful & Efficient for Business】Powered by a 13th Gen Intel Core i5 and Intel UHD Graphics with shared memory, this laptop handles multitasking, spreadsheets, video calls, and everyday office tasks with smooth, reliable performance.
【Vibrant Touchscreen Display】Enjoy crisp, expansive visuals on a 15.6-inch FHD+ touchscreen with a 16:10 aspect ratio, delivering a wide and engaging viewing experience for work and entertainment.
【High-Speed Multitasking】Experience top performance with the Dell i5 laptop, featuring Up to 64GB DDR4 RAM and a 2TB PCIe NVMe SSD that’s 15x faster than traditional HDDs. Perfect for seamless multitasking and efficient productivity.
【Windows 11 Home + AI Copilot】Runs on Windows 11 Home for a modern, intuitive experience. Includes Copilot AI support for faster task execution, smarter search, and productivity assistance at your fingertips.
【Complete Accessory Package for Ultimate Convenience】 Alongside the laptop, this package includes a set of valuable accessories to enhance your computing experience. You’ll receive a 512GB external hard drive for additional storage, a microfiber cloth for keeping your screen clean and smudge-free, and a hotkey sticker sheet to speed up your workflow.

Take a Pokémon journey to the Kanto region with your steadfast partner, Eevee! Become the best Pokémon Trainer as you battle other Trainers, Gym Leaders, and the sinister Team Rocket. Catch Pokémon in the wild using a gentle throwing motion with either a Joy-Con controller or a Poké Ball Plus accessory, which will light up, vibrate, and make sounds to bring your adventure to life. You can also use button controls in Handheld Mode. Share your adventure with family or friends using a second Joy-Con or Poké Ball Plus (sold separately). You can even connect to the Pokémon GO app* using a compatible smartphone to bring over Pokémon originally discovered in the Kanto region!

Explore the vibrant region of Kanto—home to beloved characters like Brock, Misty, and the nefarious trio Jessie, James, and Meowth! Throughout the story, your bond with your partner Pokémon grows stronger as you care for it and travel together. See the world in style by customizing Eevee and your Trainer with a selection of outfits. True-to-size wild Pokémon roam around in the game—catch them like a real Pokémon Trainer by using timing and a well-placed Poké Ball. Battle and trade with other players who own the game via local wireless or online**. Go on a stroll with your favorite Pokémon in your Poké Ball Plus to level them up, and to receive in-game rewards after returning them to the game.
*Using as a Pokémon GO Plus requires installation of the Pokémon GO application on a compatible smartphone.
Game, system and Poké Ball Plus sold separately. *Pokémon GO application, compatible smartphone and persistent Internet access required. Data charges may apply. **Nintendo Switch Online membership (sold separately) and Nintendo Account required for online play. Not available in all countries. Internet access required for online features. Terms apply. ***Using as a Pokémon GO Plus requires installation of the Pokémon GO application on a compatible smartphone.
Is Discontinued By Manufacturer ‏ : ‎ No
Language ‏ : ‎ English
Product Dimensions ‏ : ‎ 0.42 x 6.63 x 4.09 inches; 1.6 ounces
Our Recommended age ‏ : ‎ 5 – 20 years
Manufacturer recommended age ‏ : ‎ 0 – 8 years
Item model number ‏ : ‎ Pokémon: Let’s Go, Eevee!
Date First Available ‏ : ‎ December 31, 2016
Manufacturer ‏ : ‎ Nintendo
ASIN ‏ : ‎ B01N7RE3HB
Best Sellers Rank: #677 in Video Games (See Top 100 in Video Games) #56 in Nintendo Switch Games
Customer Reviews: 4.7 4.7 out of 5 stars (10,431) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });

Don the role of a Pokémon Trainer as you travel through Kanto
Discover a new species of Pokémon with the Pokémon Lets Go series
Catch Pokémon in the wild using a gentle throwing motion with either a Joy-Con controller or a Poké Ball Plus accessory, which will light up, vibrate, and make sounds to bring your adventure to life
See the world in style by customizing Pikachu and your Trainer with a selection of outfits
Connect to Pokémon GO* to transfer caught Kanto-region Pokémon, including Alolan and Shiny forms, as well as the newly discovered Pokémon, Meltan, from that game to this one