Тип строки в Python имеет очень много удобных методов. Сегодня пост про два таких метода которые чаще всего используются "однобоко". Это методы startswith() и endswith()
Самый обычный сценарий использования — проверка, начинается ли строка с указанной подстроки?
>>> "some_string".startswith("some")
True
И аналогичная ситуация с зеркальным вариантом этой функции, проверка совпадения с конца
>>> "some_string".endswith("some")
False
Так они используются в большинстве случаев что я видел. Но у этих функций есть еще два варианта использования.
🔸Сравнение нескольких подстрок
Для проверки нескольких подстрок в одной строке обычно вызывают эти функции несколько раз. Но на самом деле достаточно передать кортеж со всеми строками один раз. Если будет хоть одно совпадение то функция вернёт True.
>>>"my_image.png".endswith(("jpg", "png", "exr"))
True
🔸Диапазон поиска
Вторым аргументом можно передать индекс символа с которого следует начать сравнение, а третий аргумент это индекс последнего символа.
>>> ".filename.ext".startswith("file", 1)
True
>>> "file_###.ext".endswith('#', 0, -4)
True
Индексы можно указать отрицательными, что означает отсчёт с конца.
#trics#basic
Token LIBRA Crashes 94% in Hours
🚨 Argentine President Javier Milei's promoted token LIBRA plummeted 94% shortly after launch, with insiders cashing out over $107 million. Initial market cap peaked at $4.56 billion but has dropped to $174 million. The token was marketed as a tool to boost Argentina's economy. Milei later removed his promotional post and blamed political opponents for the fallout.
📉 Link to details: Full story
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🚀 Covenant AI Founder Sells 37,000 TAO Tokens
According to Foresight News, crypto influencer Jesus Martinez has reported that Covenant AI founder Sam Dare sold 37,000 TAO tokens six hours ago.
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🚀 Blockchain Energy is LIVE! 🔥
The world’s first physical blockchain product is here—introducing Blockchain Energy! 💥 Our website and ICO are officially LIVE, and early buyers can now purchase BET tokens at.
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Errol Musk's Token Plans to Raise Millions
Errol Musk aims to raise $150-$200 million through the "Musk It" memecoin, leveraging his family name. Proceeds will support the newly established Musk Institute. Recently, the crypto space has faced various rug pulls linked to projects of the same name. 🪙💰Read more here
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$1M Raised for E3 Enclave Project
Open-source protocol E3 Enclave successfully raised $1M during its public sale, achieving a $60M fully diluted valuation. The sale was conducted on the Legion platform.
Meanwhile, AI-focused protocol BAD Coin secured $1.25M at a $12.5M valuation, emphasizing growth in the AI and crypto sectors.
Read more: E3 Enclave | BAD Coin
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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