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💡 𝗖# 𝐓𝐢𝐩 - 𝗗𝗶𝗳𝗳𝗲𝗿𝗲𝗻𝗰𝗲𝘀 𝗕𝗲𝘁𝘄𝗲𝗲𝗻 𝗖𝗼𝗻𝘀𝘁 𝗮𝗻𝗱 𝗥𝗲𝗮𝗱𝗼𝗻𝗹𝘆 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀 🔥 𝗰𝗼𝗻𝘀𝘁 and 𝗿𝗲𝗮𝗱𝗼𝗻𝗹𝘆 in 𝗖# share the common feature of preventing variables from being modified after initialization, but they have some key differences. 🔷 𝗰𝗼𝗻𝘀𝘁 ➤ Constants are declared with the 𝗰𝗼𝗻𝘀𝘁 modifier. ➤ Defines a 𝗰𝗼𝗺𝗽𝗶𝗹𝗲-𝘁𝗶𝗺𝗲 constant. Its value is known and fixed at compile time and cannot be changed at runtime. ➤ Must be declared with an initializer and 𝗰𝗼𝗻𝘀𝘁 members are implicitly static. ➤ Can only be used with basic types like integers, booleans, and strings. User-defined types, including classes, structs, and arrays, cannot be 𝗰𝗼𝗻𝘀𝘁. 🔷 𝗿𝗲𝗮𝗱𝗼𝗻𝗹𝘆 ➤ Readonly are declared with the 𝗿𝗲𝗮𝗱𝗼𝗻𝗹𝘆 modifier. ➤ Defines a 𝗿𝘂𝗻𝘁𝗶𝗺𝗲 constant. Its value can be assigned during initialization or in the constructor, but cannot be modified after that. ➤ Can be declared with or without an initializer and can be static or non-static. ➤ Can be used with any type, including reference types. ❓What are your thoughts on 𝗰𝗼𝗻𝘀𝘁 and 𝗿𝗲𝗮𝗱𝗼𝗻𝗹𝘆? Comment below👇 ♻️ If this is useful, 𝙧𝙚𝙥𝙤𝙨𝙩 to spread the knowledge. 👉 Please follow me (Poorna Soysa) and click the notification bell icon (🔔)on my profile to receive notifications for all my upcoming posts. 𝗧𝗵𝗮𝗻𝗸 𝘆𝗼𝘂 𝗳𝗼𝗿 𝗿𝗲𝗮𝗱𝗶𝗻𝗴! #DotNET #CSharp #DotNETDevelopers #Programming

🌹 A const value is a compile-time constant. A readonly field can only be assigned during declaration or in the constructor of the containing class.Can be initialized with a runtime value.

💡 𝐂#/.𝐍𝐄𝐓 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐓𝐢𝐩 🔥   💎𝐀𝐥𝐥() 𝐯𝐬 𝐓𝐫𝐮𝐞𝐅𝐨𝐫𝐀𝐥𝐥() 𝐁𝐞𝐧𝐜𝐡𝐦𝐚𝐫𝐤 𝐓𝐞𝐬𝐭 𝐢𝐧 .𝐍𝐄𝐓 𝟖.𝟎 💡 You should prefer to use 𝐓𝐫𝐮𝐞𝐅𝐨𝐫𝐀𝐥𝐥() instead of 𝐀𝐥𝐥() method with collections. ⚡ The 𝐀𝐥𝐥() method checks for all the elements in a collection and returns a boolean. It is used with lambda expressions or predicates. Even if one of the element do not satisfy the set condition, the All() method returns False, otherwise True. ⚡ The 𝐓𝐫𝐮𝐞𝐅𝐨𝐫𝐀𝐥𝐥() method takes a predicate delegate as an argument and checks whether all elements in the collection satisfy the specified conditions and returns a boolean. Even if one of the element do not satisfy the set condition, the TrueForAll() method returns False, otherwise True. ✅ 𝐀𝐥𝐥() 𝐢𝐬 𝐦𝐨𝐫𝐞 𝐠𝐞𝐧𝐞𝐫𝐚𝐥 𝐭𝐡𝐚𝐧 𝐭𝐡𝐞 𝗧𝗿𝘂𝗲𝗙𝗼𝗿𝗔𝗹𝗹() method. 🔥 𝗧𝗿𝘂𝗲𝗙𝗼𝗿𝗔𝗹𝗹() method can be more efficient than All(), especially for large collections such as 𝐋𝐢𝐬𝐭, 𝐀𝐫𝐫𝐚𝐲, 𝐈𝐦𝐦𝐮𝐭𝐚𝐛𝐥𝐞𝐋𝐢𝐬𝐭 𝐚𝐧𝐝 𝐦𝐦𝐮𝐭𝐚𝐛𝐥𝐞𝐋𝐢𝐬𝐭.𝐁𝐮𝐢𝐥𝐝𝐞𝐫 collection types. This is because TrueForAll() can use the underlying implementation of the collection to iterate over the elements in the most efficient way possible. #csharp #dotnet #programming #softwareengineering #softwaredevelopment

💡 𝗖# 𝐓𝐢𝐩 - 𝗦𝘄𝗶𝘁𝗰𝗵 𝗘𝘅𝗽𝗿𝗲𝘀𝘀𝗶𝗼𝗻 🔥 The 𝙎𝙬𝙞𝙩𝙘𝙝 𝙚𝙭𝙥𝙧𝙚𝙨𝙨𝙞𝙤𝙣 feature was introduced in 𝗖# 𝟴. It allows you to efficiently evaluate a single expression from a set of candidate expressions, determining the match through 𝙥𝙖𝙩𝙩𝙚𝙧𝙣 𝙢𝙖𝙩𝙘𝙝𝙞𝙣𝙜 with an input expression. 🚀 The => syntax, the 𝙎𝙬𝙞𝙩𝙘𝙝 𝙚𝙭𝙥𝙧𝙚𝙨𝙨𝙞𝙤𝙣 assigns a value corresponding to the matched pattern. This not only enhances readability but also facilitates more elegant and compact code. Using the discard symbol 𝙪𝙣𝙙𝙚𝙧𝙨𝙘𝙤𝙧𝙚 (__) as a 𝙙𝙚𝙛𝙖𝙪𝙡𝙩 case adds to its flexibility. Here are some benefits of 𝙎𝙬𝙞𝙩𝙘𝙝 𝙚𝙭𝙥𝙧𝙚𝙨𝙨𝙞𝙤𝙣 in 𝗖#: ✅ 𝗖𝗼𝗻𝗰𝗶𝘀𝗲𝗻𝗲𝘀𝘀 𝗮𝗻𝗱 𝗥𝗲𝗮𝗱𝗮𝗯𝗶𝗹𝗶𝘁𝘆: 𝙎𝙬𝙞𝙩𝙘𝙝 𝙚𝙭𝙥𝙧𝙚𝙨𝙨𝙞𝙤𝙣 provide a more concise syntax, reducing boilerplate code and enhancing code readability. Perfect for clean and elegant solutions! ✅ 𝗣𝗮𝘁𝘁𝗲𝗿𝗻 𝗠𝗮𝘁𝗰𝗵𝗶𝗻𝗴: The power of 𝙥𝙖𝙩𝙩𝙚𝙧𝙣 𝙢𝙖𝙩𝙘𝙝𝙞𝙣𝙜 allows for more complex conditions within each case, making it versatile and expressive. ✅ 𝗥𝗲𝘁𝘂𝗿𝗻 𝗩𝗮𝗹𝘂𝗲𝘀: 𝙎𝙬𝙞𝙩𝙘𝙝 𝙚𝙭𝙥𝙧𝙚𝙨𝙨𝙞𝙤𝙣 can be used as an expression, allowing for the direct assignment of values. This simplifies code and eliminates the need for temporary variables. ❓ Do you use 𝙎𝙬𝙞𝙩𝙘𝙝 𝙨𝙩𝙖𝙩𝙚𝙢𝙚𝙣𝙩 or 𝙎𝙬𝙞𝙩𝙘𝙝 𝙚𝙭𝙥𝙧𝙚𝙨𝙨𝙞𝙤𝙣? Comment below 👇 ♻️ If this content is useful, 𝙧𝙚𝙥𝙤𝙨𝙩 to spread the knowledge. 👉 Please follow me (Poorna Soysa) and click the notification bell icon (🔔) on my profile to receive notifications for all my upcoming posts. 🐦 Please follow me on X (https://x.com/TechPoorna) 𝗧𝗵𝗮𝗻𝗸 𝘆𝗼𝘂 𝗳𝗼𝗿 𝗿𝗲𝗮𝗱𝗶𝗻𝗴! #DotNET #CSharp #DotNETDevelopers #Programming #CleanCode

💡 𝐂#/.𝐍𝐄𝐓 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐓𝐢𝐩 🔥   💎𝐀𝐥𝐥() 𝐯𝐬 𝐓𝐫𝐮𝐞𝐅𝐨𝐫𝐀𝐥𝐥() 𝐁𝐞𝐧𝐜𝐡𝐦𝐚𝐫𝐤 𝐓𝐞𝐬𝐭 𝐢𝐧 .𝐍𝐄𝐓 8.0 You should prefer to use 𝐓𝐫𝐮𝐞𝐅𝐨𝐫𝐀𝐥𝐥() instead of 𝐀𝐥𝐥() method with collections. 💡 The 𝐀𝐥𝐥() method checks for all the elements in a collection and returns a boolean. It is used with lambda expressions or predicates. Even if one of the element do not satisfy the set condition, the All() method returns False, otherwise True. ⚡ The 𝐓𝐫𝐮𝐞𝐅𝐨𝐫𝐀𝐥𝐥() method takes a predicate delegate as an argument and checks whether all elements in the collection satisfy the specified conditions and returns a boolean. Even if one of the element do not satisfy the set condition, the TrueForAll() method returns False, otherwise True. ✅ 𝐀𝐥𝐥() 𝐢𝐬 𝐦𝐨𝐫𝐞 𝐠𝐞𝐧𝐞𝐫𝐚𝐥 𝐭𝐡𝐚𝐧 𝐭𝐡𝐞 𝗧𝗿𝘂𝗲𝗙𝗼𝗿𝗔𝗹𝗹() method. 🚀 𝗧𝗿𝘂𝗲𝗙𝗼𝗿𝗔𝗹𝗹() method can be more efficient than All(), especially for large collections such as 𝐋𝐢𝐬𝐭, 𝐀𝐫𝐫𝐚𝐲, 𝐈𝐦𝐦𝐮𝐭𝐚𝐛𝐥𝐞𝐋𝐢𝐬𝐭 𝐚𝐧𝐝 𝐦𝐦𝐮𝐭𝐚𝐛𝐥𝐞𝐋𝐢𝐬𝐭.𝐁𝐮𝐢𝐥𝐝𝐞𝐫 collection types. This is because TrueForAll() can use the underlying implementation of the collection to iterate over the elements in the most efficient way possible. #csharp #dotnet #programming #softwareengineering #softwaredevelopment

💡 𝐂#/.𝐍𝐄𝐓 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐓𝐢𝐩 🔥   💎𝐀𝐥𝐥() 𝐯𝐬 𝐓𝐫𝐮𝐞𝐅𝐨𝐫𝐀𝐥𝐥() 𝐁𝐞𝐧𝐜𝐡𝐦𝐚𝐫𝐤 𝐓𝐞𝐬𝐭 𝐢𝐧 .𝐍𝐄𝐓 𝟖.𝟎 💡 You should prefer to use 𝐓𝐫𝐮𝐞𝐅𝐨𝐫𝐀𝐥𝐥() instead of 𝐀𝐥𝐥() method with collections. ⚡ The 𝐀𝐥𝐥() method checks for all the elements in a collection and returns a boolean. It is used with lambda expressions or predicates. Even if one of the element do not satisfy the set condition, the All() method returns False, otherwise True. ⚡ The 𝐓𝐫𝐮𝐞𝐅𝐨𝐫𝐀𝐥𝐥() method takes a predicate delegate as an argument and checks whether all elements in the collection satisfy the specified conditions and returns a boolean. Even if one of the element do not satisfy the set condition, the TrueForAll() method returns False, otherwise True. ✅ 𝐀𝐥𝐥() 𝐢𝐬 𝐦𝐨𝐫𝐞 𝐠𝐞𝐧𝐞𝐫𝐚𝐥 𝐭𝐡𝐚𝐧 𝐭𝐡𝐞 𝗧𝗿𝘂𝗲𝗙𝗼𝗿𝗔𝗹𝗹() method. 🔥 𝗧𝗿𝘂𝗲𝗙𝗼𝗿𝗔𝗹𝗹() method can be more efficient than All(), especially for large collections such as 𝐋𝐢𝐬𝐭, 𝐀𝐫𝐫𝐚𝐲, 𝐈𝐦𝐦𝐮𝐭𝐚𝐛𝐥𝐞𝐋𝐢𝐬𝐭 𝐚𝐧𝐝 𝐦𝐦𝐮𝐭𝐚𝐛𝐥𝐞𝐋𝐢𝐬𝐭.𝐁𝐮𝐢𝐥𝐝𝐞𝐫 collection types. This is because TrueForAll() can use the underlying implementation of the collection to iterate over the elements in the most efficient way possible. #csharp #dotnet #programming #softwareengineering #softwaredevelopment

Please do not talk about method names only. You need at least add class name, may be the whole namespace. Here All is LINQ.Enumerable method, TrueForAll is available on a few classes like List<T>, Array, and classes in Immutable namespace. Semantically, they are the same. Another proof that LINQ Is Not Quick.

💡 𝐂#/.𝐍𝐄𝐓 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐓𝐢𝐩 🔥   💎𝐀𝐥𝐥() 𝐯𝐬 𝐓𝐫𝐮𝐞𝐅𝐨𝐫𝐀𝐥𝐥() 𝐁𝐞𝐧𝐜𝐡𝐦𝐚𝐫𝐤 𝐓𝐞𝐬𝐭 𝐢𝐧 .𝐍𝐄𝐓 𝟖.𝟎 💡 You should prefer to use 𝐓𝐫𝐮𝐞𝐅𝐨𝐫𝐀𝐥𝐥() instead of 𝐀𝐥𝐥() method with collections. ⚡ The 𝐀𝐥𝐥() method checks for all the elements in a collection and returns a boolean. It is used with lambda expressions or predicates. Even if one of the element do not satisfy the set condition, the All() method returns False, otherwise True. ⚡ The 𝐓𝐫𝐮𝐞𝐅𝐨𝐫𝐀𝐥𝐥() method takes a predicate delegate as an argument and checks whether all elements in the collection satisfy the specified conditions and returns a boolean. Even if one of the element do not satisfy the set condition, the TrueForAll() method returns False, otherwise True. ✅ 𝐀𝐥𝐥() 𝐢𝐬 𝐦𝐨𝐫𝐞 𝐠𝐞𝐧𝐞𝐫𝐚𝐥 𝐭𝐡𝐚𝐧 𝐭𝐡𝐞 𝗧𝗿𝘂𝗲𝗙𝗼𝗿𝗔𝗹𝗹() method. 🔥 𝗧𝗿𝘂𝗲𝗙𝗼𝗿𝗔𝗹𝗹() method can be more efficient than All(), especially for large collections such as 𝐋𝐢𝐬𝐭, 𝐀𝐫𝐫𝐚𝐲, 𝐈𝐦𝐦𝐮𝐭𝐚𝐛𝐥𝐞𝐋𝐢𝐬𝐭 𝐚𝐧𝐝 𝐦𝐦𝐮𝐭𝐚𝐛𝐥𝐞𝐋𝐢𝐬𝐭.𝐁𝐮𝐢𝐥𝐝𝐞𝐫 collection types. This is because TrueForAll() can use the underlying implementation of the collection to iterate over the elements in the most efficient way possible. #csharp #dotnet #programming #softwareengineering #softwaredevelopment

💡 𝐂#/.𝐍𝐄𝐓 𝐓𝐡𝐞𝐧𝐁𝐲() 𝐌𝐞𝐭𝐡𝐨𝐝 𝐔𝐬𝐚𝐠𝐞 𝐓𝐢𝐩 🚀 𝐃𝐨𝐧'𝐭 𝐮𝐬𝐞 𝐦𝐮𝐥𝐭𝐢𝐩𝐥𝐞 𝐎𝐫𝐝𝐞𝐫𝐁𝐲() 𝐦𝐞𝐭𝐡𝐨𝐝 ◾ The 𝐎𝐫𝐝𝐞𝐫𝐁𝐲() method in C# is used for sorting elements in a collection based on 𝐬𝐩𝐞𝐜𝐢𝐟𝐢𝐞𝐝 𝐤𝐞𝐲(𝐬). ◾ The 𝗧𝗵𝗲𝗻𝗕𝘆() method in C# is used after the initial OrderBy() to apply additional sorting conditions. ⚠️ When multiple OrderBy() usage are chained together, each subsequent OrderBy() completely reorders the list, discarding the results of the previous OrderBy(). This means that only 𝐭𝐡𝐞 𝐥𝐚𝐬𝐭 𝐎𝐫𝐝𝐞𝐫𝐁𝐲() method will have any effect on the final ordering of the collection. ✅ This ensures that the data is sorted first by the first field (Name field e.g.), and then by the second field (ListPrice field e.g.) and then by thirth field (Size field e.g.). After all the elements of the list are sorted according to the first field (Name field), 𝐭𝐡𝐞 𝐨𝐫𝐝𝐞𝐫 𝐢𝐬 𝐩𝐫𝐞𝐬𝐞𝐫𝐯𝐞𝐝 and the list is sorted according to the new key in ThenBy() and takes its final form. 🎯 𝐖𝐡𝐚𝐭 𝐝𝐨 𝐲𝐨𝐮 𝐭𝐡𝐢𝐧𝐤 𝐚𝐛𝐨𝐮𝐭 𝐓𝐡𝐞𝐧𝐁𝐲() 𝐋𝐈𝐍𝐐 𝐌𝐞𝐭𝐡𝐨𝐝? #csharp #dotnet #programming #softwareengineering #softwaredevelopment

💡𝗖# 𝐓𝐢𝐩 - 𝗦𝘄𝗶𝘁𝗰𝗵 𝗘𝘅𝗽𝗿𝗲𝘀𝘀𝗶𝗼𝗻 🔥The 𝙎𝙬𝙞𝙩𝙘𝙝 𝙚𝙭𝙥𝙧𝙚𝙨𝙨𝙞𝙤𝙣 feature was introduced in 𝗖# 𝟴. It allows you to efficiently evaluate a single expression from a set of candidate expressions, determining the match through 𝙥𝙖𝙩𝙩𝙚𝙧𝙣 𝙢𝙖𝙩𝙘𝙝𝙞𝙣𝙜 with an input expression. The => syntax, the 𝙎𝙬𝙞𝙩𝙘𝙝 𝙚𝙭𝙥𝙧𝙚𝙨𝙨𝙞𝙤𝙣 assigns a value corresponding to the matched pattern. This not only enhances readability but also facilitates more elegant and compact code. Using the discard symbol 𝙪𝙣𝙙𝙚𝙧𝙨𝙘𝙤𝙧𝙚 (__) as a 𝙙𝙚𝙛𝙖𝙪𝙡𝙩 case adds to its flexibility. Here are some benefits of 𝙎𝙬𝙞𝙩𝙘𝙝 𝙚𝙭𝙥𝙧𝙚𝙨𝙨𝙞𝙤𝙣 in 𝗖#: ✅ 𝗖𝗼𝗻𝗰𝗶𝘀𝗲𝗻𝗲𝘀𝘀 𝗮𝗻𝗱 𝗥𝗲𝗮𝗱𝗮𝗯𝗶𝗹𝗶𝘁𝘆: 𝙎𝙬𝙞𝙩𝙘𝙝 𝙚𝙭𝙥𝙧𝙚𝙨𝙨𝙞𝙤𝙣 provide a more concise syntax, reducing boilerplate code and enhancing code readability. Perfect for clean and elegant solutions! ✅ 𝗣𝗮𝘁𝘁𝗲𝗿𝗻 𝗠𝗮𝘁𝗰𝗵𝗶𝗻𝗴: The power of 𝙥𝙖𝙩𝙩𝙚𝙧𝙣 𝙢𝙖𝙩𝙘𝙝𝙞𝙣𝙜 allows for more complex conditions within each case, making it versatile and expressive. ✅ 𝗥𝗲𝘁𝘂𝗿𝗻 𝗩𝗮𝗹𝘂𝗲𝘀: 𝙎𝙬𝙞𝙩𝙘𝙝 𝙚𝙭𝙥𝙧𝙚𝙨𝙨𝙞𝙤𝙣 can be used as an expression, allowing for the direct assignment of values. This simplifies code and eliminates the need for temporary variables. ❓Do you use 𝙎𝙬𝙞𝙩𝙘𝙝 𝙨𝙩𝙖𝙩𝙚𝙢𝙚𝙣𝙩 or 𝙎𝙬𝙞𝙩𝙘𝙝 𝙚𝙭𝙥𝙧𝙚𝙨𝙨𝙞𝙤𝙣? Comment below 👇 ♻️ If this content is useful, 𝙧𝙚𝙥𝙤𝙨𝙩 to spread the knowledge. 👉 Please follow me (Poorna Soysa) and click the notification bell icon (🔔) on my profile to receive notifications for all my upcoming posts. 𝗧𝗵𝗮𝗻𝗸 𝘆𝗼𝘂 𝗳𝗼𝗿 𝗿𝗲𝗮𝗱𝗶𝗻𝗴! #csharp #dotnet #dotnetdevelopers #programming