投稿時間:2022-03-13 04:20:50 RSSフィード2022-03-13 04:00 分まとめ(27件)

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海外TECH	MakeUseOf	9 Challenge Apps to Meet Your Health and Wellness Goals	https://www.makeuseof.com/challenge-apps-meet-health-wellness-goals/	Challenge Apps to Meet Your Health and Wellness GoalsWhen you need more inspiration than a to do list these challenge apps can answer the call to help you achieve your health and wellness goals quickly	2022-03-12 18:45:13
海外TECH	MakeUseOf	6 Ways to Find Symbols and Look Up Symbol Meanings	https://www.makeuseof.com/tag/symbols-look-up-symbols/	libraries	2022-03-12 18:45:14
海外TECH	MakeUseOf	8 Photography Skills That Are Transferable to Filmmaking	https://www.makeuseof.com/transfer-photography-skills-to-filmmaking/	fundamental	2022-03-12 18:30:13
海外TECH	MakeUseOf	The iPhone 14: Everything We Know So Far	https://www.makeuseof.com/iphone-14-release/	september	2022-03-12 18:30:14
海外TECH	MakeUseOf	How to Change Caption Settings in Windows 11	https://www.makeuseof.com/change-caption-settings-windows/	windows	2022-03-12 18:15:13
海外TECH	DEV Community	Learning About Dynamo	https://dev.to/therealdakotal/learning-about-dynamo-55p4	Learning About DynamoOriginally published on dakotalewallen meFantastic video by Alex DeBrie Starts with very elementary explanation of dynamo as a whole and then drills down to provide some examples about modelling for one to many relationships Found the middle to later parts super useful personally as one of the things I feel I m lacking the most when working with dynamo are application patterns for dealing with modelling I ve also heard this stated before from other sources but my favorite quote from the video would have to be Schema less does not mean that there is no schema enforcement But rather that you have to enforce the schema at the application layer This concept is easy to miss or omit while building applications that are dynamo backed The freedom felt by not having your storage system forcing you to define the shape of your data is liberating But it does not come without a cost Having seen fully schemaless applications at play More often than not you end up with a pile of scripts moving abstract bits of data back and forth between an API and dynamo with little to no evidence of what it is that s moving So tracking head from tail becomes an arduous task To that end you ll say Well what do you do then And from my reading it appears we end up back at Object Oriented Programming DynamoDb Toolbox seems like a moderately popular library for accomplishing this in node I ve also talked with a friend who makes heavy use of it and he had no complaints A newer player in the space is TypeDORM taking heavy inspiration from TypeORM and using DynamoDb Toolbox under the hood Personally I ve yet to use this tool but it s for sure on my short list to try out Whatever your runtime environment may be more than likely you re going to need to develop your entity definitions in your code base and then use some combination of either rd party libraries or aws libraries to hydrate those definitions for use via API s or other services Another core concept that diverges from traditional RDBMS backed systems is the storage access to constant values While not a requirement of those systems it is a common to pattern to put constants within a table So that those values can be derived via joins at the database layer instead of accessed via application code In dynamo this is a pretty major anti pattern as joins don t exist You probably could hack this into a single table design by having them exists as items with like a PK of the constant group name and an SK of the constant key But you would have to do essentially an in memory join with multiple queries Where instead you could get the same result if you just defined a static object that holds those values and referenced them after you perform a query to get the item A possible footgun you could accidentally build while working with dynamo is using a common delimiter within your PK s and SK s Context while working with dynamo its common to concatenate data points for use within one of your items keys e g a user data type might have a PK of the businessId that they belong to and then a concatenated string for the SK of something like userId createdAt The footgun comes into play involving what you use to separate those values in the SK Lets say you re using UUID s for the userId Typically UUID s are delimited by dashes If you also delimit the two values with a dash you ll probably run into some issues at some point as your SK will look something like T Its less of a problem in this example because you can predetermine how many of the dashes in each value But in other cases its possible to delimit with a symbol that could unexpectedly appear in your data which could cause issues when you try to find a value with too many delimiters in it Something important to consider when designing your keys is relative uniqueness of whatever value you assign as your PK Since PK s translate to partitions there s a Goldilocks zone of having a lot of unique PK s so that your data is well dispersed but still having enough things related to that data point so that you can work with related things AKA you don t want item per partition but you also don t want to only have partition	2022-03-12 18:21:00
海外TECH	DEV Community	Top 20 linux commands.	https://dev.to/dumboprogrammer/top-20-linux-command-4pck	Top linux commands Linux The os that makes servers embedded systems android phones etc Linux is everywhere It is free and open source I use Linux gnomeDE for daily drive so I know a thing or two Although Linux should be referred as GNU Linux it is shortened as Linux only Linux is an UNIX like OS so most of the work is done through terminal CLI Linux is an essential skill Today we will learn commands to use to manipluate some works in linux clear commandclear is a standard operating system command which is used to clear the terminal screen This command brings the command line on the top of the terminal By pressing the ctrl L shortcut key you can also clear the terminal screen Syntax clear exit commandThis command is used to close the terminal window or exit the shell It takes one more parameter which exits the terminal or a shell Also use the shortcut key ctrl shift w to close the shell or terminal window and ctrl shift q for close all the terminal tabs Syntax exit n echo commandThe echo command is used to print the line of text or a string or a number It prints the string that passes as an argument in the command Syntax echo option string Different options used in an echo command a b b is a backspace option used with a backslash interpreter b t This option is used in a string for the horizontal tab spaces using the backslash interpreter e c n n option is used to break a string or a line of text by using the backslash interpreter e d v This option is used for the vertical tab space e c It is also used with the backslash interpreter e and produce no further string after it f echo This option displays the files and directories as similar to the ls command history commandThe history command displays all previously used commands since the session was started Syntax history pwd commandpwd stands for present working directory which shows the path of the working directory starting from the root Syntax pwd cd commandThe cd command is used to change the current working directory into its child or parent directory or any other directory home or root directory Syntax cd directory name Different types of cd commands in Linux a cd This command is used to change the current directory to the parent directory b cd cd is used to move the user to the root directory c cd this command is used to change the current directory to home directory d cd dir dir dir This command is used to change a directory from the parent directory ls CommandThe ls command shows the list of all the files and folders in the current working directory Syntax ls option Options used with ls command a ls version this option shows the version of ls b ls This option ls shows the list of files and directories of the home directory c a It shows the list of all the files and directories with the hidden files started with the dot symbol in the current directory d d It is used to display only the list of directories e R This option of ls command displays the file of subdirectories also mkdir commandmkdir stands for make directory and it is used to create a new directory in a file system It takes one or more argument as a directory name It also creates multiple directories by passing their directory names in the command By using this command you can also set permission to the directory Syntax mkdir option directory nameSyntax mkdir dir dir dir dirN By using the ls command you can verify that the directory is successfully created or not rmdir commandIt stands for remove directory This command is used to remove the existing empty directory from the file system and takes one more argument as a directory name It removes each directory specified in the rmdir command Syntax rmdir option directory nameSyntax rmdir dir dir dir dirN cp commandThe cp command is used to copy the file or directory from one location source to another location destination This command takes at least two arguments as a file name It can also copy more than one file in a single directory Syntax cp option Source Destination Copy the content of one file into the second file R This option copies all the files of source directory to the destination directory mv command mv stands for move and is used to move one and more files and directories from one place to another directory or location in a Linux file system This command is also used to rename a file folder and directory by passing the old name of a file and new name as an argument To move directorySyntax mv option source directory destination directory touch commandThe touch command is a standard command used in Linux for creating the empty files if not exits It is also used to create change and modify the timestamp i e date and time of the file It takes at least one argument as a file name Syntax touch file name cat commandcat concatenate command reads the data from the file and displays the content of the file as an output on the terminal It also helps to append the content of a text file to the end of another text file Display the content of a fileYou can display the content of a file by passing the file name as an argument in a command line Syntax cat option file name ln commandln command is used to link two files and directories in Linux There are two types of link Hard link Hard links create links between two or more filenames with the same inode number By default the ln command creates a hard link between files It links directly to data on disk or the physical data Soft Link It is also known as symbolic link or symlink Symbolic link or soft link does not directly link to the data on disk they relate to another link Create a hard linkSyntax ln file link Create a soft link symbolic link You can create a symbolic link or soft link by using the s Syntax ln s path of file name link name date commandThe date command is used to display the current date and time of the system A super user can change the value of the system date and time Syntax date option Format ps command ps stands for processes status and this command is used to display the currently running processes with their process Identification number i e PIDs along with some other information for each process depends on the different options Syntax ps option a A or e This option prints all the processes running in your Linux system whoami commandwhoami is mainly the concatenation of the string “who am i and when this command is executed then it displays the username of the current user Syntax whoami option passwd commandThe passwd command changes the password of a user account in Linux When you are changing the password make sure that you are using a unique and strong password To change the password run the following passwd command without any option Syntax passwd uname commandThe uname command shows the information about the system such as machine name Operating system and kernel Syntax uname option a use a for all info apt commandThe Debian based apt command stands for Advanced Package Tool Apt is a package manager for Debian based systems like Ubuntu Kubuntu Lubuntu etc that automatically and intelligently search update install and resolves dependency of packages on Linux system from command line Interface Syntax apt get package namewohooo We are doneBonus Tips Use help after any command for it s usage info Use version after any command to know it s versionThat s the end A like would be appreciated	2022-03-12 18:12:52
Apple	AppleInsider - Frontpage News	Mac mini may keep existing form factor in 2023, says Ming-Chi Kuo	https://appleinsider.com/articles/22/03/12/mac-mini-may-keep-existing-form-factor-in-2023-says-ming-chi-kuo?utm_medium=rss	Mac mini may keep existing form factor in says Ming Chi KuoApple s update to the Mac mini may not undergo any changes in size or shape for a update according to analyst Ming Chi Kuo who thinks the compact Mac may stay largely the same for a while longer The Mac mini hasn t undergone any major revisions in its size or shape over a number of iterations While rumors say that there are changes on the way to the iconic design one commentator feels that there may not be much change at all In a Saturday tweet analyst Ming Chi Kuo of TF Securities posted I think the new Mac mini in will likely remain the same form factor design Read more	2022-03-12 18:31:00
Apple	AppleInsider - Frontpage News	iPad, iPad mini, iPad Air, or iPad Pro: Which iPad to buy at any price point	https://appleinsider.com/articles/21/11/09/ipad-ipad-mini-ipad-air-or-ipad-pro-which-ipad-to-buy-at-any-price-point?utm_medium=rss	iPad iPad mini iPad Air or iPad Pro Which iPad to buy at any price pointApple s catalog of iPad models covers an extremely wide range of price points for its customers Here s what iPad you should be getting for your budget The iPad mini is a great buy at the value end of the catalog Apple s coverage of the price spectrum from budget to premium has a lot of coverage enabling anyone with a budget in mind for their iPad purchase to get something at their thought of price Read more	2022-03-12 18:03:56
Cisco	Cisco Blog	Secure Energy Operations	https://blogs.cisco.com/energy/394579	Secure Energy OperationsTrend Overview The Colonial Pipeline incident in the spring of changed every security conversation in midstream oil and gas It prompted very disruptive security regulation from the TSA affecting all midstream operators in the U S but it also created awareness in the whole energy industry that security is now a formal requirement So what	2022-03-12 18:36:06
Cisco	Cisco Blog	Secure Mine Operations	https://blogs.cisco.com/energy/secure-mine-operations	Secure Mine OperationsTrend Overview In the Marsh report printed what many of us were starting to understand  “The world s leading mining companies are now unanimous in reporting that cyber threats are a principal risk to them achieving their goals Cyber Risk  Threats and Insurance Protection for the Mining Sector  For the mining industry security is now a	2022-03-12 18:24:26
ニュース	BBC News - Home	Roman Abramovich: Premier League disqualifies Chelsea owner as director of club	https://www.bbc.co.uk/sport/football/60720343?at_medium=RSS&at_campaign=KARANGA	Roman Abramovich Premier League disqualifies Chelsea owner as director of clubThe Premier League disqualifies Chelsea owner Roman Abramovich as a director of the club and sleeve sponsor Hyundai suspend deal with the European champions	2022-03-12 18:39:10
ニュース	BBC News - Home	Six Nations: Ireland see off brave 14-man England	https://www.bbc.co.uk/sport/rugby-union/60722384?at_medium=RSS&at_campaign=KARANGA	england	2022-03-12 18:41:08
ニュース	BBC News - Home	Brexit: Micheál Martin and Boris Johnson discuss NI Protocol	https://www.bbc.co.uk/news/uk-northern-ireland-60723231?at_medium=RSS&at_campaign=KARANGA	england	2022-03-12 18:23:07
ニュース	BBC News - Home	Sarah Everard: Protesters block road outside Scotland Yard	https://www.bbc.co.uk/news/uk-england-london-60720907?at_medium=RSS&at_campaign=KARANGA	everard	2022-03-12 18:50:51
ニュース	BBC News - Home	'Salah must decide if he wants icon status - or money' - will Liverpool forward stay at Anfield?	https://www.bbc.co.uk/sport/football/60722135?at_medium=RSS&at_campaign=KARANGA	x Salah must decide if he wants icon status or money x will Liverpool forward stay at Anfield Mohamed Salah scores as Liverpool beat Brighton at the end of a week in which speculation around his future at the club continued	2022-03-12 18:48:17
ビジネス	ダイヤモンド・オンライン - 新着記事	【700万人が感動した数学ノート】アメリカの中学生が学んでいる「確率」超入門 - アメリカの中学生が学んでいる14歳からの数学	https://diamond.jp/articles/-/298418	【万人が感動した数学ノート】アメリカの中学生が学んでいる「確率」超入門アメリカの中学生が学んでいる歳からの数学年の発売直後から大きな話題を呼び、中国・ドイツ・韓国・ブラジル・ロシア・ベトナム・ロシアなど世界各国にも広がった「学び直し本」の圧倒的ロングセラーシリーズ「BigFatNotebook」の日本版が刊行される。	2022-03-13 03:55:00
ビジネス	ダイヤモンド・オンライン - 新着記事	自分の原稿を「声」と「目」と「ペン」で読み返そう - 取材・執筆・推敲──書く人の教科書	https://diamond.jp/articles/-/297746	古賀史健	2022-03-13 03:50:00
ビジネス	ダイヤモンド・オンライン - 新着記事	「優秀」で「個性的」なのに結果が出ない人と、「大したことをしていない」のに成果を出せる人を分けるもの - 起業家の思考法	https://diamond.jp/articles/-/298914	問題解決	2022-03-13 03:45:00
ビジネス	ダイヤモンド・オンライン - 新着記事	「時間の使い方」がうまくなる、オリンピックメダリストが教える習慣とは - 東大金融研究会のお金超講義	https://diamond.jp/articles/-/298919	「時間の使い方」がうまくなる、オリンピックメダリストが教える習慣とは東大金融研究会のお金超講義年月に発足した東大金融研究会。	2022-03-13 03:40:00
ビジネス	ダイヤモンド・オンライン - 新着記事	【1日1分強運貯金で願いが叶う！】 見るだけで、突然、みるみる厄落とし！ “伊邪那岐命・伊邪那美命”のパワフル御利益パワーとは？ - 1日1分見るだけで願いが叶う！ふくふく開運絵馬	https://diamond.jp/articles/-/296739	【日分強運貯金で願いが叶う】見るだけで、突然、みるみる厄落とし“伊邪那岐命・伊邪那美命のパワフル御利益パワーとは日分見るだけで願いが叶うふくふく開運絵馬Amazonランキング第位祭祀・、楽天ブックスランキング第位民俗・、。	2022-03-13 03:35:00
ビジネス	ダイヤモンド・オンライン - 新着記事	「副業禁止」のウソ。 あなたの会社が 副業を禁止できない理由 - 真の「安定」を手に入れるシン・サラリーマン	https://diamond.jp/articles/-/296753	「副業禁止」のウソ。	2022-03-13 03:30:00
ビジネス	ダイヤモンド・オンライン - 新着記事	【9割の人が知らない！第一人者のコピーライティング技術100】 日本一のマーケターが、 売れるコピーライティングの奥義を特別伝授！ - コピーライティング技術大全	https://diamond.jp/articles/-/297272	【割の人が知らない第一人者のコピーライティング技術】日本一のマーケターが、売れるコピーライティングの奥義を特別伝授コピーライティング技術大全発売たちまち大重版Amazonランキング第位広告・宣伝。	2022-03-13 03:25:00
ビジネス	ダイヤモンド・オンライン - 新着記事	【出口学長・日本人が最も苦手とする哲学と宗教特別講義】 なぜ、孔子は 「礼」と「仁」を 強く訴えたのか？ - 哲学と宗教全史	https://diamond.jp/articles/-/296824		2022-03-13 03:20:00
ビジネス	ダイヤモンド・オンライン - 新着記事	【林家木久扇が分類】「自慢したくてたまらないバカ」 - バカのすすめ	https://diamond.jp/articles/-/297910	【林家木久扇が分類】「自慢したくてたまらないバカ」バカのすすめバカは強い、バカは愛される、バカは楽しい、バカは得であるー。	2022-03-13 03:15:00
ビジネス	ダイヤモンド・オンライン - 新着記事	頭のいい人と悪い人「転職エージェントとの付き合い方」の差 - 転職が僕らを助けてくれる	https://diamond.jp/articles/-/290436	頭のいい人と悪い人「転職エージェントとの付き合い方」の差転職が僕らを助けてくれる「今の会社で働き続けていいのかな」「でも、転職するのは怖いな……」。	2022-03-13 03:10:00
ビジネス	ダイヤモンド・オンライン - 新着記事	メーカーに就職したい人なら知っておきたい！「ロジスティクス」の語源や歴史 - 全図解 メーカーの仕事	https://diamond.jp/articles/-/298929	メーカーに就職したい人なら知っておきたい「ロジスティクス」の語源や歴史全図解メーカーの仕事メーカー製造業の仕事は、自動車、電機、食品……などの商品・サービスをつくって売ることですが、お客さまに満足いただけるものを過不足なくつくって遅滞なく届けるために、メーカーにはさまざまな機能があります。	2022-03-13 03:05:00