| python |
Pythonタグが付けられた新着投稿 - Qiita |
ipyleafletでbasemapの変更方法 |
https://qiita.com/cartooh/items/ba5cf0999d4c74ca42f1
|
basemap |
2022-12-17 23:46:13 |
| python |
Pythonタグが付けられた新着投稿 - Qiita |
python super関数はすごいんだなって学習したのでまとめる |
https://qiita.com/1023shogo2013/items/ffe23b92d06b0c4bd67c
|
classbaseo |
2022-12-17 23:19:40 |
| python |
Pythonタグが付けられた新着投稿 - Qiita |
【実装】pythonoccでstepファイルから面の形を検出してみた |
https://qiita.com/ka_ogu/items/b2a73bae9f0ad1b220e0
|
pythonocc |
2022-12-17 23:15:57 |
| js |
JavaScriptタグが付けられた新着投稿 - Qiita |
初めてphaserでゲームを作りたい時に読みたい記事 |
https://qiita.com/shokim0320/items/28d50e93a1eed2b8d11a
|
github |
2022-12-17 23:39:52 |
| js |
JavaScriptタグが付けられた新着投稿 - Qiita |
【Alpine.js使用者必見】コンポーネントサンプルサイト2選 |
https://qiita.com/yowatsuyoengineer/items/1f781574b4fc79a81803
|
alpinejs |
2022-12-17 23:16:10 |
| Azure |
Azureタグが付けられた新着投稿 - Qiita |
[Azure,AzureSynapseAnalytics] ストレージに貯めたログファイルにクエリを実行する |
https://qiita.com/iron-samurai/items/c878a17299dc4e8761a4
|
azure |
2022-12-17 23:22:17 |
| Git |
Gitタグが付けられた新着投稿 - Qiita |
【ケーススタディ】マージ戦略を変えてみたらgit中級者になれた気がした |
https://qiita.com/TomK/items/7aa93092c87c5ac95115
|
feature |
2022-12-17 23:33:54 |
| Ruby |
Railsタグが付けられた新着投稿 - Qiita |
whereメソッドの基本的な使い方 |
https://qiita.com/sho_onuki/items/d9a3714da67a79225345
|
plansplanwhere |
2022-12-17 23:35:31 |
| 技術ブログ |
Developers.IO |
AWS re:InventのWorkshopセッション参加のすすめ |
https://dev.classmethod.jp/articles/recommendations-for-attending-an-aws-reinvent-workshop-session/
|
awsreinvent |
2022-12-17 14:55:00 |
| 海外TECH |
MakeUseOf |
How to Create an Emergency Panic Button on Your Android Smartphone |
https://www.makeuseof.com/emergency-sos-panic-button-android/
|
android |
2022-12-17 14:01:14 |
| 海外TECH |
DEV Community |
Re-entrancy attacks in Ethereum smart contrats |
https://dev.to/_jaleltounsi/re-entrancy-attack-in-an-ethereum-smart-contrat-5e2f
|
Re entrancy attacks in Ethereum smart contratsA re entrancy attack is a type of vulnerability that can occur in smart contracts that allow an attacker to repeatedly call an external contract in a way that consumes all available gas This can lead to a denial of service DoS attack or allow the attacker to exploit the contract for their own benefit Here is an example of a simple contract written in Solidity that is vulnerable to a re entrancy attack pragma solidity contract ReentrancyAttack The attacker s contract address address public attacker The contract s balance uint public balance Constructor to set the attacker s contract address constructor address attacker public attacker attacker Fallback function that is called when the contract receives ether function external payable Update the contract s balance balance msg value Call the attacker s contract attacker call value msg value In this example the contract has a fallback function that is called whenever the contract receives ether The function updates the contract s balance and then calls the attacker s contract If the attacker s contract calls back into the original contract it can create an infinite loop that consumes all available gas To prevent this type of attack it is important to carefully consider the potential for re entrancy when designing and implementing smart contracts One way to do this is to use a mutex or lock to prevent multiple calls to the contract s functions at the same time Here is an example of how to use a mutex to prevent a re entrancy attack in Solidity pragma solidity contract ReentrancyAttack The attacker s contract address address public attacker The contract s balance uint public balance A flag to indicate if the contract is currently executing bool public executing Constructor to set the attacker s contract address constructor address attacker public attacker attacker Fallback function that is called when the contract receives ether function external payable Set the executing flag to true executing true Update the contract s balance balance msg value Call the attacker s contract attacker call value msg value Set the executing flag to false executing false In this example the contract sets a flag executing to true before calling the attacker s contract and sets it to false after the call is complete This allows the contract to prevent re entrancy by checking the executing flag before executing any functions It is important to note that this is just one way to prevent re entrancy attacks and there may be other methods that are more suitable for different types of contracts It is always best to carefully consider the potential vulnerabilities of your contract and take steps to mitigate them |
2022-12-17 14:30:45 |
| ニュース |
BBC News - Home |
Brixton Academy: Woman dies after Asake concert crush |
https://www.bbc.co.uk/news/uk-england-london-64012167?at_medium=RSS&at_campaign=KARANGA
|
academy |
2022-12-17 14:55:19 |
| ニュース |
BBC News - Home |
Shanghai schools to go online as Covid spreads in China |
https://www.bbc.co.uk/news/world-asia-64010209?at_medium=RSS&at_campaign=KARANGA
|
china |
2022-12-17 14:03:13 |
| ニュース |
BBC News - Home |
Leo Varadkar becomes taoiseach as Micheál Martin steps down |
https://www.bbc.co.uk/news/world-europe-63945064?at_medium=RSS&at_campaign=KARANGA
|
fianna |
2022-12-17 14:18:03 |
| ニュース |
BBC News - Home |
Frankie Dettori says he will ride for one final season before retiring |
https://www.bbc.co.uk/sport/horse-racing/64011657?at_medium=RSS&at_campaign=KARANGA
|
career |
2022-12-17 14:31:46 |
| ニュース |
BBC News - Home |
FIS Snowboard Cross World Cup: Britain's Charlotte Bankes wins gold |
https://www.bbc.co.uk/sport/winter-sports/64005311?at_medium=RSS&at_campaign=KARANGA
|
cervinia |
2022-12-17 14:49:07 |
| ニュース |
BBC News - Home |
Aberdeen 0-1 Celtic: Callum McGregor scores late winner for champions |
https://www.bbc.co.uk/sport/football/63896768?at_medium=RSS&at_campaign=KARANGA
|
Aberdeen Celtic Callum McGregor scores late winner for championsReturning captain Callum McGregor scored a fantastic late winner as Celtic eventually broke down a stubborn Aberdeen side to restore their nine point lead in the Scottish Premiership |
2022-12-17 14:26:50 |
| ビジネス |
不景気.com |
三重の携帯販売「アールイー」に破産決定、負債2億円 - 不景気com |
https://www.fukeiki.com/2022/12/re-mobile.html
|
株式会社アールイー |
2022-12-17 14:37:01 |
| 北海道 |
北海道新聞 |
キルデが今季４勝目 アルペン男子Ｗ杯滑降 |
https://www.hokkaido-np.co.jp/article/776731/
|
男子 |
2022-12-17 23:52:00 |
| 北海道 |
北海道新聞 |
＜写真特集＞３チームチア「きつねダンス」コラボ 乃木坂４６金川さんも会場盛り上げ |
https://www.hokkaido-np.co.jp/article/776727/
|
北海道日本ハム |
2022-12-17 23:38:27 |
| 北海道 |
北海道新聞 |
デジタル人材育成に新制度 道職員対象、２３年度から ４段階認定、業務効率化へ |
https://www.hokkaido-np.co.jp/article/776728/
|
人材育成 |
2022-12-17 23:27:00 |
| 北海道 |
北海道新聞 |
十勝川水系の治水対策を強化 整備計画見直し、河道掘削５割増 発電・農業用ダム活用も |
https://www.hokkaido-np.co.jp/article/776726/
|
十勝川水系 |
2022-12-17 23:25:00 |
| 北海道 |
北海道新聞 |
性暴力、黙らない私も 道内相談件数２年で倍増 被害者支援、地域で差 |
https://www.hokkaido-np.co.jp/article/776711/
|
被害者支援 |
2022-12-17 23:18:27 |
| 北海道 |
北海道新聞 |
厳冬の地震想定し訓練 低体温症の対処法確認 滝川 |
https://www.hokkaido-np.co.jp/article/776719/
|
低体温症 |
2022-12-17 23:13:44 |
| 北海道 |
北海道新聞 |
次世代原発、泊は対象外 政府、再稼働の審査優先 |
https://www.hokkaido-np.co.jp/article/776718/
|
建て替え |
2022-12-17 23:07:47 |
| 北海道 |
北海道新聞 |
堀島行真、川村あんりが優勝 Ｗ杯モーグル第５戦 |
https://www.hokkaido-np.co.jp/article/776723/
|
堀島行真 |
2022-12-17 23:07:00 |
| 北海道 |
北海道新聞 |
＜安保変容 瀕死の専守防衛＞上 攻撃能力 保有優先、使用基準ぼかす |
https://www.hokkaido-np.co.jp/article/776722/
|
使用基準 |
2022-12-17 23:03:00 |
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