Паттерн Декоратор — специальный способ организации модулей в программе, который позволяет подставить какую-то новую функцию прямо в середину цепочки вызовов, тем самым чуть-чуть подкорректировав поведение.
Например, в реальном мире очки для чтения это декоратор. Вы ставите их между вашими глазами и текстом. Глобально взаимодействие ваших глаз и текста не меняется: отражённые световые лучи от страницы книги попадают в ваши зрачки, что с очками, что без них. Но очки располагаются посередине: они принимают лучи на вход и преломляют их, передавая дальше вам в глаза уже изменёнными.
Важной особенностью является тот факт, что очки можно снять. Они не требуют ни модификации вашего тела, ни модификации книги. Вообще никакие условия не нужны, кроме наличия самих очков. А если вы в линзах, то внешний наблюдатель может даже этого не знать.
Класс-декоратор должен быть спроектирован так, чтобы не требовать никаких изменений в объектах, с которыми он работает. Его можно отключить, чаще всего буквально закомментировав одну строку.
В примере ниже программа выведет текст "Привет, мир, в натуре.", и вот это дополнение в конце как раз дописано декоратором. Можно убрать или закомментировать подчёркнутую строчку, не трогая остальной код, для всех внешних вызовов сигнатуры останутся теми же самыми, но выводиться будет уже просто "Привет, мир".
В декораторы можно прятать логику, которую буквально навешивают поверх основной функции программы. Например, проверку прав на выполнение операции. Перевод на другой язык, логирование, поддержку обратной совместимости при обновлении и так далее.
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Our latest report dives into how this could trigger a historic surge in BTC valuations. 🤑 Read the insights now and stay ahead of the curve!
👉https://bit.ly/Sublime-October
#BitcoinETF#CryptoTrends
🖼 Trending now: #Memecoins - Base leads October launches with nearly 800K new tokens. #Web3#CryptoTrends
📊 十月期間,Base 鏈成為表情幣發行的主要熱點,目前已誕生約 80 萬枚新代幣。
代表性項目如 #SPX、#TOSHI、#TIBBIR 在近期市場回調後仍維持強勢,相較月初表現穩定。 #Insight
@EthereumGlobalNews Follow for more global Web3 & DeFi updates!
🚀 Memecoin Holding Time on Solana Drops to 58 Seconds
According to NS3.AI, the average holding time for memecoins on the Solana blockchain has significantly decreased to just 58 seconds, compared to approximately one day three years ago. This rapid turnover is attributed to traders who quickly respond to popular posts on X, purchasing related memecoins almost instantly and selling them within three minutes. This trend highlights the increasing speed and volatility in the memecoin market on Solana.
#Memecoin#Solana#Crypto#Blockchain#Trading#Volatility#NS3AI#XPlatform#CryptoTrends#ShortTermTrading#SOL
🚀 Bitcoin's Current Market Correction Appears Milder Than Previous Cycles
On April 12, crypto analyst Axel Adler Jr commented on the current Bitcoin market correction. According to BlockBeats, Adler noted that this correction seems significantly milder compared to the bear markets of the 2017-18 and 2021-22 cycles. However, he cautioned that the current level of correction is insufficient to confirm a market bottom.
In previous cycles, the maximum drawdowns were -54% for 2021-22, -64% for 2017-18, and -43% for 2013-15. The current market dynamics suggest a mild bear market, not yet reaching a deep capitulation phase, making it premature to confirm a bottom or a true market recovery. The analyst emphasized that the current situation is more of a pause in the bear market rather than a reversal of trends.
#Bitcoin#CryptoMarket#MarketCorrection#BearMarket#BitcoinAnalysis#CryptoTrends#AxelAdlerJr#BitcoinBearCycles#CryptoRecovery#BTC
Blockchain Fundraising Leaders of 2024
🔥 The top blockchain platforms for fundraising in public token sales in 2024 have been revealed.
SOL and BASE lead in capital raised and project launches. ETH sees a significant rise, benefiting from its market dominance and improved macroeconomic conditions in crypto.
BNB Chain maintains stability, reflecting similar results to last year amidst overall market recovery.
More details here: CryptoRank
#Blockchain#SOL#BASE#ETH#BNB#VC#Crypto#TokenSales#Fundraising#CryptoMarket#Investments #2024 #CapitalRaise#Projects#MarketTrends#Finance#CryptoTrends#BlockchainIndustry
Large Crypto Transactions Witnessed
🚨 Significant crypto transfers observed: 413M #DOGE (around $105M) and 144M #XRP ($346M) moved from Kraken to unknown wallets. Additionally, 147K #ETH (approx. $406M) also transferred.
In regulatory updates, the FDIC plans to allow U.S. banks to engage in crypto activities without prior approval, boosting crypto interest. MicroStrategy has rebranded as Strategy, focusing on Bitcoin treasury management.
For additional insights on the changing crypto landscape, visit Barron's and Leviathan News.
#DOGE#ETH#XRP#Crypto#FDIC#Bitcoin#MicroStrategy#Blockchain#Regulations#Finance#CryptoNews#USA#Investments#WhaleAlert#CryptoMarket#CryptoTrading#CustodyServices#TokenizedDeposits#CryptoTrends#VC
Circle Expands USDC Ecosystem
🚀 Circle announces key developments:
- Acquired RWA platform Hashnote.
- Partnered with DRW to promote USDC and Ondo Dollar (USDY).
- USDC and USYC launching on Canton blockchain.
💵 50M USDC minted (approx. $50.03M).
Bitcoin ETFs now hold over 1.1M BTC (~5.7% supply).
Details here | More on Bitcoin ETFs | Canton news
#USDC#Circle#Blockchain#Crypto#Finance#USYC#Bitcoin#ETFs#Investments#Hashnote#DRW#DigitalAssets#Canton#Markets#CryptoTrends#Tokenization#WhaleAlert#Funding#Sustainability#DeFi#Innovation
Ethereum's Downfall According to Sonic Labs Co-founder
André Krone, co-founder of Sonic Labs, shares his thoughts on Ethereum's struggles against rival ecosystems:
- Fragmented liquidity and separate L2 networks.
- ETH farming via centralized sequencers causing excess coin supply.
- USDe stablecoin creates ongoing selling pressure.
- Competitors excel in user experience and speed.
- Attempts to maintain neutrality hinder top applications.
- Ethereum scaling roadmap lacks action, waiting for L2 solutions.
- Ecosystem support mainly comes from podcasters, not engineers.
Krone notes that developers prefer platforms like Solana, Avalanche, and Base rather than Ethereum.
Read more here.
#Ethereum#Solana#Avalanche#Crypto#VC#L2#Stablecoin#USDe#MarketMaking#DeFi#Layer2#Blockchain#TechNews#UserExperience#Innovation#DigitalAssets#CryptoTrends#SonicLabs
Major Crypto Transactions and Trends Unveiled
🚨 A massive transfer of 25,000,000 #XRP ($81.44M) has been reported from #Upbit to an unknown wallet. For details, visit Whale Alert.
The Ethereum Foundation sold 100 ETH for 336,000 DAI amidst discussions on staking options, highlighting ongoing regulatory concerns voiced by Vitalik Buterin in a recent tweet here.
Additionally, Bitcoin volatility spikes as the price reaches $109K, correlating with a surge in investment inflows totaling $2.2 billion this past week, largely driven by euphoria surrounding the Trump inauguration. For more on the latest market trends, refer to CoinShares report.
#XRP#Bitcoin#Ethereum#Crypto#Investment#Regulation#DeFi#Funding#VC#Upbit#TokenSale#CryptoMarket#WhaleAlert#Trump#Hawala#MemeToken#Finance#DAI#CryptoTrends#Layergg#Grix
Best & Worst Crypto Narratives Revealed
In the last month, AI Agents topped the charts with a 67.02% return, while CEX coins gained 42.61%. On the downside, Modularity fell by 30.99%, Memecoins dropped 28.41%, and LRT decreased by 27.74%. Read more here. ✨ Additionally, Hong Kong lawmakers are considering including Bitcoin in fiscal reserves, aiming to stimulate the crypto industry and boost tax revenue. More details can be found here.
#AI#Crypto#CEX#Bitcoin#Investment#FiscalPolicy#CryptocurrencyIndustry#HongKong#Finance#TaxRevenue#MarketAnalysis#Returns#LawPolicy#AIAgents#Modularity#Memecoins#CryptoTrends#Innovation#Funds#TalentAttraction
Telegram Unveils Major NFT Update
🎉 Telegram introduces a big update allowing gifts and stickers to be converted into NFTs. Gifts gain unique traits like emotions, backgrounds, and colors, enhancing their individuality and value. Rare traits will be limited to 10% of users, creating opportunities for resale at higher prices. Gifts can be converted for 25 Stars, while minting NFTs incurs network fees. Future integration with platforms like Fragment or GG is expected for seamless NFT creation. 🐸 The latest highlight is a unique frog gift gaining traction!
For more details, visit: Full Update
#Telegram#NFT#Gifts#Crypto#Updates#Blockchain#Stars#Minting#Fragment#GG#Frogs#RareItems#DigitalAssets#Community#Market#Trading#Tech#Innovation#SocialMedia#Engagement#CryptoTrends