It's wonderful to know that this course will be beneficial for you. Please consider liking, subscribing, and sharing with your friends and family to support the growth of our channel. Your support will motivate our team to create and upload more content like this. ♥ The main differences between Scala 2 and 3 are: Syntax: Scala 3 introduces a simplified and more consistent syntax compared to Scala 2. It removes some of the more complex features and syntactic ambiguities of Scala 2. Type System: Scala 3 comes with a reworked type system that addresses several limitations and inconsistencies in Scala 2. It introduces new features like union types, intersection types, and improved handling of implicits. Metaprogramming: Scala 3 introduces a new metaprogramming framework called "Metaprogramming API" (or scala.reflect ) that replaces the old reflection and macros systems of Scala 2. It offers a more robust and type-safe way of working with the AST (Abstract Syntax Tree) of Scala programs. Pattern Matching: Scala 3 enhances the pattern matching capabilities of Scala 2 by introducing new features like match types, which allow types to be matched in pattern matching expressions. Implicits: Scala 3 introduces changes to the implicit resolution mechanism, making it more predictable and less error-prone compared to Scala 2. Enums: Scala 3 introduces first-class support for enums, making it easier and cleaner to define enumeration types compared to Scala 2. Regarding backward compatibility, Scala 3 is not fully backward-compatible with Scala 2. However, efforts have been made to ensure a smooth migration path from Scala 2 to Scala 3. The Scala 3 compiler includes a compatibility mode that allows Scala 2 code to be compiled directly with the Scala 3 compiler. Additionally, a tool called "scalameta" can be used to automatically migrate Scala 2 code to Scala 3 syntax. Although the migration process may require some manual fixes, the goal is to make it as painless as possible for existing Scala 2 projects to transition to Scala 3.
It's wonderful to know that this course will be beneficial for you. Please consider liking, subscribing, and sharing with your friends and family to support the growth of our channel. Your support will motivate our team to create and upload more content like this. ♥
It's wonderful to know that this course will be beneficial for you. Please consider liking, subscribing, and sharing with your friends and family to support the growth of our channel. Your support will motivate our team to create and upload more content like this. ♥ Here these book will help you. "Programming in Scala" by Martin Odersky, Lex Spoon, and Bill Venners "Functional Programming in Scala" by Paul Chiusano and Runar Bjarnason "Scala Cookbook" by Alvin Alexander "Scala for the Impatient" by Cay Horstmann "Scala in Depth" by Joshua D. Suereth
Scala works on JavaByteCode, which is optimized for Java, so before you can understand Scala deeply, you would have to learn Java anyway. In fact, you can't really learn Scala to a professional level without learning Java, because most of the Big Data frameworks and libraries that are optimized for use with Scala were originally created in Java, and Scala is not really used anywhere other than Big Data, while Java is used not only with Big Data, but in many other projects, so it is *significantly* easier to find a job with Java rather than with Scala. And if you would learn both, it will get even easier to find a job. And it is significantly easier to learn Scala after Java rather than vice-versa. If you know just Java, you would still be able write code in Scala after a tiny bit of practice so you would be able to learn Scala on the go (it will be OOP code, so you won't use all the features of FP, but it will be working code nonetheless), but if you only know Scala, it won't help you in writing Java code at all and you would basically have to be learning it from scratch. And there are way more in-depth tutorials for Java than for Scala. Also almost no one will help you to solve LeetCode-like algorithmical questions in Scala, while most of the best tutorials are originally Java-based. All in all, I think Java is most certainly a better choice for a beginner, while Scala is a good choice for a second or a third language to learn.
No, you do not have to learn Java before Scala. In fact you can learn Java after Scala and you will have an easier time learning it, because you learned Scala first. (There's a university who decided to teach Scala before Java to their students and they came to the conclusion that it was better than learning Java first. I can't remember which university it was, but this statistic was mention by Martin Odersky, the creator of Scala in one of the talks I watched a few days ago)
Thank you for the tutorial! What are the main differences between Scala 2 and 3, and is version 3 backward-compatible?
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The main differences between Scala 2 and 3 are:
Syntax: Scala 3 introduces a simplified and more consistent syntax compared to Scala 2. It removes some of the more complex features and syntactic ambiguities of Scala 2.
Type System: Scala 3 comes with a reworked type system that addresses several limitations and inconsistencies in Scala 2. It introduces new features like union types, intersection types, and improved handling of implicits.
Metaprogramming: Scala 3 introduces a new metaprogramming framework called "Metaprogramming API" (or
scala.reflect
) that replaces the old reflection and macros systems of Scala 2. It offers a more robust and type-safe way of working with the AST (Abstract Syntax Tree) of Scala programs.
Pattern Matching: Scala 3 enhances the pattern matching capabilities of Scala 2 by introducing new features like match types, which allow types to be matched in pattern matching expressions.
Implicits: Scala 3 introduces changes to the implicit resolution mechanism, making it more predictable and less error-prone compared to Scala 2.
Enums: Scala 3 introduces first-class support for enums, making it easier and cleaner to define enumeration types compared to Scala 2.
Regarding backward compatibility, Scala 3 is not fully backward-compatible with Scala 2. However, efforts have been made to ensure a smooth migration path from Scala 2 to Scala 3. The Scala 3 compiler includes a compatibility mode that allows Scala 2 code to be compiled directly with the Scala 3 compiler. Additionally, a tool called "scalameta" can be used to automatically migrate Scala 2 code to Scala 3 syntax. Although the migration process may require some manual fixes, the goal is to make it as painless as possible for existing Scala 2 projects to transition to Scala 3.
Really awesome explanation g8 job :)
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I mean the changed that with Tasty and scala 3. So no more new libraries for new minor version. Forward compatible.
Can you please recommend a good book about Scala?
Thank you,
It's wonderful to know that this course will be beneficial for you. Please consider liking, subscribing, and sharing with your friends and family to support the growth of our channel. Your support will motivate our team to create and upload more content like this. ♥
Here these book will help you.
"Programming in Scala" by Martin Odersky, Lex Spoon, and Bill Venners
"Functional Programming in Scala" by Paul Chiusano and Runar Bjarnason
"Scala Cookbook" by Alvin Alexander
"Scala for the Impatient" by Cay Horstmann
"Scala in Depth" by Joshua D. Suereth
is scala a good prolang? or should i learn java first before learn scala?
Scala works on JavaByteCode, which is optimized for Java, so before you can understand Scala deeply, you would have to learn Java anyway. In fact, you can't really learn Scala to a professional level without learning Java, because most of the Big Data frameworks and libraries that are optimized for use with Scala were originally created in Java, and Scala is not really used anywhere other than Big Data, while Java is used not only with Big Data, but in many other projects, so it is *significantly* easier to find a job with Java rather than with Scala. And if you would learn both, it will get even easier to find a job.
And it is significantly easier to learn Scala after Java rather than vice-versa. If you know just Java, you would still be able write code in Scala after a tiny bit of practice so you would be able to learn Scala on the go (it will be OOP code, so you won't use all the features of FP, but it will be working code nonetheless), but if you only know Scala, it won't help you in writing Java code at all and you would basically have to be learning it from scratch.
And there are way more in-depth tutorials for Java than for Scala. Also almost no one will help you to solve LeetCode-like algorithmical questions in Scala, while most of the best tutorials are originally Java-based.
All in all, I think Java is most certainly a better choice for a beginner, while Scala is a good choice for a second or a third language to learn.
No, you do not have to learn Java before Scala. In fact you can learn Java after Scala and you will have an easier time learning it, because you learned Scala first. (There's a university who decided to teach Scala before Java to their students and they came to the conclusion that it was better than learning Java first. I can't remember which university it was, but this statistic was mention by Martin Odersky, the creator of Scala in one of the talks I watched a few days ago)
Can you make java video completely and briefly
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