投稿時間:2022-02-22 06:16:55 RSSフィード2022-02-22 06:00 分まとめ(18件)

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TECH	Engadget Japanese	1988年2月22日、電車の乗り継ぎ・運賃計算ソフト「駅すぱあと（首都圏版）」が発売されました：今日は何の日？	https://japanese.engadget.com/today22-203057853.html	msdos	2022-02-21 20:30:57
AWS	AWS - Webinar Channel	Enhancing customer experiences using Amazon Personalize - AWS Online Tech Talk	https://www.youtube.com/watch?v=71dWFhzw7iw	Enhancing customer experiences using Amazon Personalize AWS Online Tech TalkIn this webinar we will do a deep dive into the two new features for Amazon Personalize that were recently launched Use case recommenders allow customers to create personalized experiences by using pre built recipes and machine learning models Intelligent user segmentation can help companies build better performing marketing campaigns by using machine learning Learning Objectives Deep dive into the new features of Amazon Personalize Help customers understand the benefits of pre built recipes ML models for the most common use cases To learn more about the services featured in this talk please visit	2022-02-21 20:40:39
海外TECH	DEV Community	Introduction to Data Structures and Algorithms With Modern JavaScript	https://dev.to/davidmutinda/introduction-to-data-structures-and-algorithms-with-modern-javascript-2mhh	Introduction to Data Structures and Algorithms With Modern JavaScript Data StructuresData structures allow you to manage data JavaScript has primitive and non primitive data structures Primitive data structures and data types are native to the programming language These include boolean null number string etc Non primitive data structures are not defined by the programming language but rather by the programmer These include linear data structures static data structures and dynamic data structures like queue and linked lists ArrayAn array is a single variable that keeps numerous elements In JavaScript an array may hold different items such as Boolean strings and numbers all of which can be stored in a single array Arrays can be declared in two ways This is shown in the examples below let array JavaScript is fun orlet array newArray JavaScript is fun Because arrays are indexed from a number in square brackets is used to access elements in an array This is shown below let array JavaScript is fun console log array JavaScriptconsole log array isconsole log array funThe number of elements in an array is returned using the length property of arrays An array s length attribute can be returned as shown below let array JavaScript is fun console log array length We may assign a value to the next index to add a new value to our array let array JavaScript is fun array always console log array The output is JavaScript is fun always We utilize the splice function to remove or delete a specific item from an array For example let array JavaScript is fun array splice console log array JavaScript fun To loop through an array we may use the for keyword to loop through the full array taking use of the length parameter For example let array JavaScript is fun for a i lt array length a console log a array a The output is JavaScript is fun QueueA queue is also a data structure but you can remove only the first added element This principal is called FIFO first in first out The following is the constructor of the queue function Queue this elements The Queue constructor function uses an array to store its elements The enqueue method adds an element at the end of the queue We use the push method of the array object to insert the new element at the end of the queue Queue prototype enqueue function e this elements push e The dequeue method removes an element from the front of the queue In the dequeue method we use the shift method of the array to remove an element at the front of the queue Queue prototype dequeue function return this elements shift StackA stack is an ordered list which follows LIFO last in first out algorithm You can access the elements of a stack from only a single end The push method allows you to add one or more elements to the end of the array The push method returns the value of the length property that specifies the number of elements in the array This is shown below let stack stack push console log stack stack push console log stack stack push console log stack The pop method removes the element at the end of the array and returns the element to the caller If the array is empty the pop method returns undefined This is shown below console log stack pop console log stack console log stack pop console log stack console log stack pop console log stack emptyconsole log stack pop undefined Linked listA linked list is a linear data structure similar to an array However unlike arrays elements are not stored in a particular memory location or index Rather each element is a separate object that contains a pointer or a link to the next object in that list Each element commonly called nodes contains two items the data stored and a link to the next node The data can be any valid data type The code below shows the implementation of a linked list class with a constructor class LinkedList constructor head null this head head AlgorithmsAn algorithm is a sequence of steps to solve a well defined problem A set of rules that precisely define a sequence of operations We have different types of algorithms as stated below RecursionThis is a programming technique using function or algorithm that calls itself one or more times until a specified condition is met at which time the rest of each repetition is processed from the last one called to the first Recursion involves solving problems by breaking things down into simpler smaller versions of themselvesBinary SearchThis is a divide and conquer algorithm that divides the array in half every time it checks whether an element of the array is the one we re looking for Tail recursionThis is when instead of doing an invocation of the recursive function as the return statement it does a jump and reuses the same context of the prior recursive called Big O notationThis is a way of representing the general growth in the computational hardness of a task as you increase the data set Imperative codeThis is when you tell your program every single step to achieve a specific outcome as per your expected output	2022-02-21 20:10:28
Apple	AppleInsider - Frontpage News	Apple supplier Luxshare wants to build new plants for wearables & electric cars	https://appleinsider.com/articles/22/02/21/apple-supplier-luxshare-wants-to-build-new-plants-for-wearables-electric-cars?utm_medium=rss	Apple supplier Luxshare wants to build new plants for wearables amp electric carsApple supplier Luxshare Precision Industry is planning on raising around billion to fund new projects such as production lines aimed at wearables like the Apple Watch and some intended for smart vehicles Apple CEO Tim Cook at a Luxshare plantThe company plans to issue up to billion to up to investors at a price that will be disclosed later Reuters has reported With the share issue Luxshare is aiming to raise up to billion yuan Read more	2022-02-21 20:38:29
Apple	AppleInsider - Frontpage News	Apple's upgraded MacBook Pro 16-inch with 1TB SSD dips to $2,499 ($200 off), in stock today	https://appleinsider.com/articles/22/02/21/apples-upgraded-macbook-pro-16-inch-with-1tb-ssd-dips-to-2499-200-off-in-stock-today?utm_medium=rss	Apple x s upgraded MacBook Pro inch with TB SSD dips to off in stock todayA top seller thanks to TB of storage Apple s latest inch MacBook Pro is off ーand optional AppleCare is an additional off as well Units are in stock and ready to ship putting the system in your hands up to a month quicker than ordering from Apple directly Save instantlyApple itself is reporting a month long delay on the new inch MacBook Pro with a spacious TB SSD but you can get the upgraded model at Apple Authorized Reseller Adorama right now ーand save with promo code APINSIDER when shopping through this cost saving activation link with the activation instructions below Read more	2022-02-21 20:26:53
Apple	AppleInsider - Frontpage News	If you thought printer cartridge DRM was bad, Dymo is forcing users to buy RFID paper	https://appleinsider.com/articles/22/02/21/if-you-thought-printer-cartridge-drm-was-bad-dymo-is-forcing-users-to-buy-rfid-paper?utm_medium=rss	If you thought printer cartridge DRM was bad Dymo is forcing users to buy RFID paperPrinter manufacturer Dymo is facing backlash after it debuted new label printers that feature digital rights management embedded in their paper Credit DymoThe latest Dymo label printers sport RFID readers that can authenticate the labels that customers place within the printers According to the Electronic Frontier Foundation this allows Dymo to distinguish between first party labels and cheaper alternatives Read more	2022-02-21 20:09:17
ニュース	BBC News - Home	Covid: England ending isolation laws and mass free testing	https://www.bbc.co.uk/news/uk-60467183?at_medium=RSS&at_campaign=KARANGA	minister	2022-02-21 20:51:30
ニュース	BBC News - Home	Russia recognises Ukraine separatist regions	https://www.bbc.co.uk/news/world-europe-60468237?at_medium=RSS&at_campaign=KARANGA	ukraine	2022-02-21 20:31:29
ニュース	BBC News - Home	Storm Franklin hits UK with flooding and high winds	https://www.bbc.co.uk/news/uk-60452334?at_medium=RSS&at_campaign=KARANGA	eunice	2022-02-21 20:55:18
ニュース	BBC News - Home	Djokovic returns with win in Dubai in first match since Australia Open vaccination saga	https://www.bbc.co.uk/sport/tennis/60472071?at_medium=RSS&at_campaign=KARANGA	Djokovic returns with win in Dubai in first match since Australia Open vaccination sagaNovak Djokovic wins on his return to action after being involved in a visa and vaccination saga at the Australian Open	2022-02-21 20:44:58
ビジネス	ダイヤモンド・オンライン - 新着記事	日本郵船・商船三井・川崎汽船の合弁「日の丸コンテナ船」、世界6位から序列逆転はあるか - 海運バブル “コロナ最高益”の不安	https://diamond.jp/articles/-/296551	oceannetworkexpressone	2022-02-22 05:25:00
ビジネス	ダイヤモンド・オンライン - 新着記事	アマゾン依存で急成長の中堅配送業者に迫る、「中抜き」と「買収」リスクの恐怖 - 物流危機	https://diamond.jp/articles/-/296531	配送	2022-02-22 05:20:00
ビジネス	ダイヤモンド・オンライン - 新着記事	トヨタとデンソーのTSMC熊本工場への合流が遅れた裏事情、「ソニー優遇」を修正できるか - 絶頂トヨタの死角	https://diamond.jp/articles/-/295844	裏事情	2022-02-22 05:15:00
ビジネス	ダイヤモンド・オンライン - 新着記事	セブン＆アイDX担当役員が明かすITベンダー選定戦略、「野村総研やNECは今後も重要だが…」 - セブンDX敗戦	https://diamond.jp/articles/-/296807	執行役員	2022-02-22 05:10:00
ビジネス	ダイヤモンド・オンライン - 新着記事	ハーバード大教授が語る、日系自動車メーカーがEV時代を生き抜くための鍵 - ハーバードの知性に学ぶ「日本論」　佐藤智恵	https://diamond.jp/articles/-/296583		2022-02-22 05:05:00
北海道	北海道新聞	＜社説＞ウクライナ緊迫　武力行使回避へ全力を	https://www.hokkaido-np.co.jp/article/648445/	武力行使	2022-02-22 05:05:00
ビジネス	東洋経済オンライン	韓国ドラマ｢不安定な年下男性｣多出する納得理由 ヒョンビン出世作から女性の描かれ方変わった | ｢韓国フェミニズム｣知られざるその後 | 東洋経済オンライン	https://toyokeizai.net/articles/-/512586?utm_source=rss&utm_medium=http&utm_campaign=link_back	東洋経済オンライン	2022-02-22 05:40:00
ビジネス	東洋経済オンライン	中国｢首に鎖をつながれた8児の母｣事件の大激震 人身売買の疑いで調査も､謎が謎を呼ぶ展開に | 財新 | 東洋経済オンライン	https://toyokeizai.net/articles/-/513630?utm_source=rss&utm_medium=http&utm_campaign=link_back	人身売買	2022-02-22 05:20:00