投稿時間:2022-11-22 19:30:23 RSSフィード2022-11-22 19:00 分まとめ(33件)

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ROBOT	ロボスタ	スウェーデンのボルボ、自動運転車「Volvo EX90 SUV」を「NVIDIA DRIVE」で構築　走るコンピュータとAI新時代の象徴へ	https://robotstart.info/2022/11/22/volvo-nvidia-ex90-suv.html	スウェーデンのボルボ、自動運転車「VolvoEXSUV」を「NVIDIADRIVE」で構築走るコンピュータとAI新時代の象徴へシェアツイートはてブ安全性に新たな時代が訪れようとしている。	2022-11-22 09:29:03
python	Pythonタグが付けられた新着投稿 - Qiita	PythonとGridDBを用いた地球気候変動の解析	https://qiita.com/GridDBnet/items/7f2d2f88e8f8bb86abc1	気候変動	2022-11-22 18:41:48
js	JavaScriptタグが付けられた新着投稿 - Qiita	初心者による初心者のためのviteを使った開発環境構築	https://qiita.com/XeicuLy/items/327e16e7f4a1cb4323bd	progate	2022-11-22 18:04:06
Ruby	Rubyタグが付けられた新着投稿 - Qiita	【AWS】EC2インスタンスへのログイン	https://qiita.com/yyhoshino/items/9fd84b7b5648fefeacd0	rails	2022-11-22 18:56:54
AWS	AWSタグが付けられた新着投稿 - Qiita	【AWS】EC2インスタンスへのログイン	https://qiita.com/yyhoshino/items/9fd84b7b5648fefeacd0	rails	2022-11-22 18:56:54
Docker	dockerタグが付けられた新着投稿 - Qiita	Vue3+Vite+docker-composeでポートが正しいのにアクセスできない	https://qiita.com/Sicut_study/items/77cfb1f7df7e75d2d20a	versionservicesclientima	2022-11-22 18:12:30
Git	Gitタグが付けられた新着投稿 - Qiita	git bisectで「誰だよ！バグコミット仕込んだの！」を解決する	https://qiita.com/f-kawamura/items/a7cb01304ec3b090077f	gitbisect	2022-11-22 18:34:07
Ruby	Railsタグが付けられた新着投稿 - Qiita	【AWS】EC2インスタンスへのログイン	https://qiita.com/yyhoshino/items/9fd84b7b5648fefeacd0	rails	2022-11-22 18:56:54
技術ブログ	Mercari Engineering Blog	Cypress初心者が短期間でカバレッジを40%あげるまで	https://engineering.mercari.com/blog/entry/20221122-souzoh-auto-test/	hellip	2022-11-22 11:00:34
技術ブログ	Developers.IO	【生配信スタート】クラスメソッドにとってのAWS re:Invent 2022は本日スタートです！	https://dev.classmethod.jp/articles/reinvent2022-start/	awsreinvent	2022-11-22 09:37:51
技術ブログ	Developers.IO	[開催まであと5日!] AWS re:Invent 2022のMedia & Entertainmentなセッション情報をざっくりまとめてみた #reinvent	https://dev.classmethod.jp/articles/aws-reinvent-2022-media-and-entertainment-session-summary/	awsreinvent	2022-11-22 09:28:23
海外TECH	DEV Community	How to reverse a string in Go	https://dev.to/mavensingh/how-to-reverse-a-string-in-go-52pb	How to reverse a string in GoIn this article you ll learn about how you can reverse a string using multiple ways in Golang as of now in Golang there is no built in method to reverse a string yet so we will create our own function to reverse a string In Golang a string is a sequence of UTF bytes According to the UTF encoding standard ASCII characters are single byte However other characters range between and bytes because of this inconsistency it is nearly impossible to index a specific character inside a string If we want to index a character in Golang we can convert a string to an array or rune A rune is basically a Unicode point A Unicode point refers to a numerical value representing a Unicode character Ways to reverse string in GolangBelow is the all ways to reverse a string in Golang Simply append stringReverse a string ーRune by RuneReverse a String ーSwap Left Rune with RightFrom right sideThese are the all possible implementations you will see in the action below so without taking any extra time let s see the implementations one by one Simply append stringThis example declares an empty string and then starts appending the characters from the end one by one Algorithm Let s go through the approach to solve this problem first Step Define a function that accepts a string as a parameter Step Iterate over the input string and prepend the characters one by one to the resultant string Step Return the resultant string Code Below is the code of the following way package mainimport fmt approach function which takes a string as argument and return the reversed string func reverse s string string var str string for v range s str string v str return str func main s programmingeeksclub fmt Println original string s r reverse s fmt Println reversed string r Explanation Line We created a reverse function The function accepts a string as parameter iterates over it and prepends each character to str variable which is type string At the end of the reverse function it returns the str variable with reversed string Line We declared a string variable named s inside the main function Line We are printing the s variable which is not yet reversed Line We called reverse function and passed s variable to reverse function and we stored the returned value from reverse to r variable Line We output the result of the reversed string on the console Below is the output of the following code go run main gooriginal string programmingeeksclubreversed string bulcskeegnimmargorpReversing a string by character is very similar to the process to reverse an array The difference is that strings are immutable in Go Therefore we must first convert the string to a mutable array of runes rune perform the reverse operation on that and then re cast to a string and return back the reversed string Reverse a string ーRune by RuneThis example first appends the provided string to the rune variable and then declares another variable type rune to store the reversed characters one by one Algorithm Let s go through the approach to solve this problem Step Define a function named reverse that accepts a string as a parameter Step Declare a variable type rune and initialize the parameter value into rune variable like this rune parameter Step Declare another variable of type rune this variable will have our reversed characters and will be used to return reversed string Step Iterate over in reverse on the input runes step and append the characters one by one to the resultant rune variable step Step Convert step rune to string and return the resultant as string Code Below is the code of the following way package mainimport fmt approach function which takes a string as argument and return the reversed string func reverse s string string rune arr rune s var rev rune for i len rune arr i gt i rev append rev rune arr i return string rev func main s programmingeeksclub fmt Println original string s r reverse s fmt Println reversed string r Explanation Line We created a function called reverse The function accepts a string as parameter argument then we declared a rune arr type rune variable and at the same time passed the value of parameter to rune arr in next step we declared rev variable of type rune iterates over rune arr in reverse and appends each character to rev variable which is of type rune At the end of the reverse function and before returns if converts the rev variable into string and then returns with reversed string Line We declared a string variable named s inside the main function Line We are printing the s variable which is not yet reversed Line We called reverse function and passed s variable to reverse function and we stored the returned value from reverse to r variable Line We output the result of the reversed string on the console Below is the output of the following code go run main gooriginal string programmingeeksclubreversed string bulcskeegnimmargorp Reverse a String ーSwap Left Rune with RightThis example simply first appends the provided string to the rune variable and then iterates over the slice of rune and swaps each left index with right characters one by one and returns back the reversed rune as string Algorithm Let s go through the approach to solve this problem Step Define a function named reverse that accepts a string as a parameter Step Declare a variable type rune and initialize the parameter value into rune variable like this rune parameter Step Iterate over on the input runes step and swap the characters one by one with left to right Step Convert step rune to string and return the resultant as string Code Below is the code of the following way package mainimport fmt approach function which takes a string as argument and return the reverse of string func reverse s string string rns rune s for i j len rns i lt j i j i j rns i rns j rns j rns i return string rns func main s fmt Println original string s r reverse s fmt Println reversed string r Explanation Line We created a reverse function The function accepts a string as parameter declares a rns type rune variable and at the same time passes the value of parameter to rns iterates over it and swaps characters one by one At the end of the reverse function it returns the rns variable but before we re converting a slice of rune back to string then returning with reversed string Line We declared a string variable named s inside the main function Line We are printing the s variable which is not yet reversed Line We called reverse function and passed s variable to reverse function and we stored the returned value from reverse to r variable Line We output the result of the reversed string on the console Below is the output of the following code go run main gooriginal string reversed string moc bulcskeegnimmargorp sptth From right sideThis example declares an empty string and then starts appending the characters from the last index one by one Algorithm Let s go through the approach to solve this problem first Step Define a function that accepts a string as a parameter Step Declare a string builder type variable to hold the reversed string Step Iterate over the input string and prepend the characters one by one from last index to first into the resultant string Step Return the resultant string Code Below is the code of the following way package mainimport fmt strings approach function which takes a string as argument and return the reverse of string func reverse s string string var str strings Builder str Grow len s for idx range s str Write byte s len s idx return str String func main s fmt Println original string s r reverse s fmt Println reversed string r Now one thing comes in mind why i used strings Builder type here instead of string well strings Builder do concatenation faster than using for string Explanation Line We created a reverse function The function accepts a string as parameter iterates over it and appends each character to str variable which is type strings Builder At the end of the reverse function it returns the str variable with reversed string Line We declared a string variable named s inside the main function Line We are printing the s variable which is not yet reversed Line We called reverse function and passed s variable to reverse function and we stored the returned value from reverse to r variable Line We output the result of the reversed string on the console Below is the output of the following code go run main gooriginal string reversed string moc bulcskeegnimmargorp swenyliad sptthThere are many more ways to reverse a string in Golang I ll leave other on you write some code you can send your code to us as well if you want your code to be feature in this article what you have to do is just write your code and explain in the way I have done in this article Now let s see some benchmark results of the mentioned ways which one is the fastest one to use in your production code BenchmarkCreate a file called main test go and paste the following code in it package mainimport strings testing func SimpleReverse s string string var str string for v range s str string v str return str Benchmark goos windows goarch amd pkg reverse string cpu Intel R Core TM i F CPU GHz BenchmarkSimpleReverse ns op B op allocs opfunc SwapReverse s string string rns rune s for i j len rns i lt j i j i j rns i rns j rns j rns i return string rns Benchmark goos windows goarch amd pkg reverse string cpu Intel R Core TM i F CPU GHz BenchmarkSwapReverse ns op B op allocs opfunc UsingStrBuilderToReverse s string string var str strings Builder str Grow len s for idx range s str Write byte s len s idx return str String Benchmark goos windows goarch amd pkg reverse string cpu Intel R Core TM i F CPU GHz BenchmarkUsingStrBuilderToReverse ns op B op allocs opfunc RunesReverse s string string rune arr rune s var rev rune for i len rune arr i gt i rev append rev rune arr i return string rev Benchmark goos windows goarch amd pkg reverse string cpu Intel R Core TM i F CPU GHz BenchmarkRunesReverse ns op B op allocs opfunc ReadFromRightReverse s string string r make byte len s for i i lt len s i r i s len s i return string r Benchmark goos windows goarch amd pkg reverse string cpu Intel R Core TM i F CPU GHz BenchmarkReadFromRightReverse ns op B op allocs opfunc ReadFromRightBytesReverse s string string var byte strings Builder byte Grow len s for i len s i gt i byte WriteByte s i return byte String Benchmark goos windows goarch amd pkg reverse string cpu Intel R Core TM i F CPU GHz BenchmarkReadFromRightBytesReverse ns op B op allocs opfunc BenchmarkSimpleReverse b testing B for i i lt b N i s SimpleReverse s func BenchmarkSwapReverse b testing B for i i lt b N i s SwapReverse s func BenchmarkUsingStrBuilderToReverse b testing B for i i lt b N i s UsingStrBuilderToReverse s func BenchmarkRunesReverse b testing B for i i lt b N i s RunesReverse s func BenchmarkReadFromRightReverse b testing B for i i lt b N i s ReadFromRightReverse s func BenchmarkReadFromRightBytesReverse b testing B for i i lt b N i s ReadFromRightBytesReverse s Now run the go test bench command As you can see the fastest reverse string way took the ns and while the lowest took ns Fastest WayBelow is the fastest way between all mentioned ways func ReadFromRightReverse s string string r make byte len s for i i lt len s i r i s len s i return string r This article is originally posted on programmingeeksclub comMy Personal Blogging Website Programming Geeks ClubMy Facebook Page Programming Geeks ClubMy Telegram Channel Programming Geeks ClubMy Twitter Account Kuldeep SinghMy Youtube Channel Programming Geeks Club How to reverse a string in Golang Programming Geeks Club In this article you ll learn about how you can reverse a string using multiple ways in Golang as Golang doesn t have any built in function programmingeeksclub com	2022-11-22 09:41:19
医療系	医療介護 CBnews	カルシウム拮抗薬2剤の禁忌から妊婦など削除へ-薬食審安全対策調査会が使用上の注意改訂案を了承	https://www.cbnews.jp/news/entry/20221122175357	安全対策	2022-11-22 18:30:00
金融	金融庁ホームページ	金融庁職員の新型コロナウイルス感染について公表しました。	https://www.fsa.go.jp/news/r4/sonota/20221121.html	新型コロナウイルス	2022-11-22 10:00:00
ニュース	BBC News - Home	Cost of living: Energy suppliers failing struggling customers - Ofgem	https://www.bbc.co.uk/news/business-63704037?at_medium=RSS&at_campaign=KARANGA	meters	2022-11-22 09:24:44
ニュース	BBC News - Home	We must wean economy off immigration, Labour leader to warn businesses	https://www.bbc.co.uk/news/uk-politics-63707941?at_medium=RSS&at_campaign=KARANGA	business	2022-11-22 09:39:32
ニュース	BBC News - Home	Jack Grealish England World Cup worm dance delights young fan	https://www.bbc.co.uk/news/uk-england-manchester-63709932?at_medium=RSS&at_campaign=KARANGA	player	2022-11-22 09:15:26
ニュース	BBC News - Home	Energy bill help pushes UK government borrowing higher	https://www.bbc.co.uk/news/business-63704841?at_medium=RSS&at_campaign=KARANGA	schemes	2022-11-22 09:27:58
ニュース	BBC News - Home	Club Q Colorado shooting: Attack was ended by dad and drag performer	https://www.bbc.co.uk/news/world-us-canada-63698165?at_medium=RSS&at_campaign=KARANGA	attack	2022-11-22 09:52:39
ニュース	BBC News - Home	World Cup 2022: Virgil van Dijk hits back at criticism over OneLove armband row	https://www.bbc.co.uk/sport/football/63713257?at_medium=RSS&at_campaign=KARANGA	World Cup Virgil van Dijk hits back at criticism over OneLove armband rowNetherlands captain Virgil van Dijk hits back at criticism of European teams for deciding not to wear the OneLove armband at the World Cup	2022-11-22 09:45:37
ビジネス	不景気.com	MS＆ADが6300名の人員削減へ、25年度までの中計 - 不景気com	https://www.fukeiki.com/2022/11/ms-ad-cut-6300-job.html	人員削減	2022-11-22 09:51:49
ビジネス	不景気.com	静岡・熱海の「アカオ」がホテル事業から撤退、不動産売却で - 不景気com	https://www.fukeiki.com/2022/11/hotel-akao-end.html	静岡県熱海市	2022-11-22 09:05:12
北海道	北海道新聞	江別市長選、現職三好氏が不出馬を表明	https://www.hokkaido-np.co.jp/article/764235/	定例記者会見	2022-11-22 18:10:00
北海道	北海道新聞	詐欺被害、交通事故防げ　標語を日本酒ラベルに　金滴酒造、国学院道短大、滝川署がタッグ	https://www.hokkaido-np.co.jp/article/764234/	交通事故	2022-11-22 18:05:00
ニュース	Newsweek	飛行機の両隣に肥満の2人！ 「悪夢の状況」をツイートしたら大炎上...これって差別なの？	https://www.newsweekjapan.jp/stories/world/2022/11/post-100172.php	体格に関係なく、私の思いを理解してくれた人は数多くいたのだ。	2022-11-22 18:38:00
IT	週刊アスキー	MOTTERU、USB Power Delivery対応のコンパクトAC充電器の新色2モデルを販売開始	https://weekly.ascii.jp/elem/000/004/114/4114310/	motteru	2022-11-22 18:50:00
IT	週刊アスキー	PC『ガンダムトライヴ』でチーム対戦「赤き先導者～袖付きの策動～」を開催！	https://weekly.ascii.jp/elem/000/004/114/4114326/	開催期間	2022-11-22 18:50:00
IT	週刊アスキー	ナイスモバイル、ワイヤレスで画面投影ができるビジネス向けMAXHUB「ミラーリングディスプレイ」を販売開始	https://weekly.ascii.jp/elem/000/004/114/4114308/	maxhub	2022-11-22 18:45:00
IT	週刊アスキー	オリジナルTシャツ購入でドリンク１杯無料券が付く！　今年も開催、11月24日（木）は思い出横丁の日！	https://weekly.ascii.jp/elem/000/004/114/4114236/	思い出横丁	2022-11-22 18:30:00
IT	週刊アスキー	「れじぇくろ！～レジェンド・クローバー～」で「ブラックフライデーセット」を販売中！	https://weekly.ascii.jp/elem/000/004/114/4114312/	dmmgames	2022-11-22 18:30:00
IT	週刊アスキー	耳を塞がないオープンイヤー型ワイヤレスイヤホン「PurFree Buds」先行販売がクラウドファンディングサイトGREEN FUNDINGにて開始	https://weekly.ascii.jp/elem/000/004/114/4114313/	greenfunding	2022-11-22 18:30:00
IT	週刊アスキー	「ダーティペア」×『アリス・ギア・アイギス』で土器手司さん描き下ろしイラストを公開！	https://weekly.ascii.jp/elem/000/004/114/4114320/	公式サイト	2022-11-22 18:15:00
海外TECH	reddit	キーホルダー買った	https://www.reddit.com/r/lowlevelaware/comments/z1p3eq/キーホルダー買った/	wlevelawarelinkcomments	2022-11-22 09:15:41