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Are Dart 1.x books still relevant?
(1 answer)
Closed 3 years ago.
I read on many places that Dart 2 is not completely backward compatible with Dart. I found a list of books that are for Dart 1.x
https://dart.dev/resources/books
Can someone with Dart 1 and Dart 2 experience tell me if this books are relevant for learning Dart 2, can I use them or I should wait for release of some Dart 2 book.
I am not sure that this is the relevant place for this type of question, but I did't found anything more suiting in the Stack Exchange network.
Yes sure it is relevant. For the language instance creation keywords like new and const have become optional to help declutter the code. They’ve made a number of small changes and done some cleanup on the dart core libraries. Nothing huge to worry about :)
Related
Are the Dart 1.x books still relevant, now that Dart 2 is released? Dart 2 documentation only points to a migration guide. I am trying to learn Dart and was wondering if I should buy one of the Dart 1.x based books or should wait for the publication of Dart 2 based books
Dart 1 books will be about 80% correct. The problem will be sussing out the 20%.
The type system is VERY different in ways that can be surprising.
I'd start with https://dart.dev/guides
The language is moving pretty quickly. No book you get will be as updated as you want!
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are extensions bad for performance in swift?
(2 answers)
Closed 3 years ago.
So i have been somewhat thwarted from using extension in my new work place and the reason is that it slows the app down?
Is it true? I cant seem to find any article that verifies this
Cuz i am so used to using extensions to wrap things of similar functionalities, same protocol together.
Extensions do not affect application performance, because in general it's gets compiled into the same machine code, especially when using Whole-Module-Optimization.
However huge number of extensions might affect your app's compile times. Take a look at this benchmark.
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Learn C first before learning Objective-C [closed]
(23 answers)
Closed 7 years ago.
I'm a novice programmer looking to build my own iOS app. I'm hearing a lot of mixed responses on how it may or may not be necessary to learn C before taking on Objective-C.
I'm leaning towards learning Objective-C first considering I can always look back into the C (I'm using Big Nerd Ranch Guide for Objective-C) for some concepts like structs, arrays, etc.
I'm open to hearing any advice on what any of you may think!
Learn C language first. Because most of the low level computer programming stuff might be covered by that and you may get to learn how to program with much primary capabilities provided within the language. Because this is mostly Procedure Oriented Programming (POP).
Then move on to learn Objective-C which is an Object Oriented Programming (OOP) Language. Here you can use the skills you used to program using that primary language and you might feel that you are provided much power within the Objective-C and also be able to describe and make use of world in more Object-Oriented manner!
And must remember, as you are going to implement iOS Applications, you better have a good knowledge about Objective-C before moving to learn Apples new language for its products like Mac OS X and iOS, which is Swift! Because Objective-C has been used by them for a long period of time, and still it's been used by them.
Here read the following question and it's answers if you want to clarify more:
Learn C first before learning Objective-C
Hint: Seems like your Question also might be closed sooner enough saying it's been duplicated or answered before! :-)
My advice would be to forget about both C and Objective-C and learn Swift. It's an easier, more contemporary language and the future of iOS development.
I have a bright idea that I want to develop and thus want to learn web programming. I have searched high and low only to be confused by all the JS'es and the frameworks and all the never ending pros and cons.
I have recently come across Google Dart and its somewhat reassuring to know that all I will ever need for web application development is possible and there in one place. First question if I just learned Dart would this previous statement that I don't need to learn anything else be true?
Secondly, how should one go about learning Dart? Can I learn directly, if not what prerequisites should I know first to get started on Dart?
First of all you should know that all the information that interests you exists on the main site: Dart: Structured web apps.
This site include the following information:
Get started:
Get Dart
Get Tutorials
Technical Overview
Docs:
Programmer’s Guide
Dart API Reference
Language Specification
Dart Cookbook
Dart: Up and Running
Books on Dart
Articles
Frequently Asked Questions (FAQ)
Tools:
Dart Editor
Pub Package Manager
More tools for Dart
Resources:
Dart Code Samples
Dart Synonym: Translations from Dart
Try Dart online
Dart Presentations
Dartisans: The Dart show and podcast
Dart Tips: Short Video Tutorials
Dart Bug and Feature request
Community:
Contact the Dart Project
Contributor's Guide
Community Resources
Within these resources, you can find a lot of useful information for getting started with Dart.
Also, they contains a lot of links to other external sources of information.
Several years ago, I started learning php. Twice. And twice did I fail, because I just read theory and did not code php itself.
If you want to learn Dart, just start developing. Think of an idea you would like to implement and start developing it. Every few lines of code you will stumble and have no clue how to solve something, and therefore you will have to read theory, ask on stackoverflow - but will always have in mind, what your precise goal is.
Time will pass, you will have implemented 2-3 ideas of yours and will have covered a great deal of Dart.
Learning by doing.
If you don't even know HTML, I suggest starting with the Dart Tutorials.
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Generating GUIDs in Ruby
(11 answers)
Closed 10 years ago.
I am looking for a list of UUID gems for Ruby on Rails, could someone please recommend a couple to me, preferably ones that are not so complicated that I wouldn't be able to understand them easily.
The Ruby Toolbox is a nice place to start your search.
I would strongly recommend you to use UUID Tools
A brief of what they offer:
UUIDTools was designed to be a simple library for generating any of
the various types of UUIDs. It conforms to RFC 4122 whenever possible.
I have been using it for different projects and I haven't had any problems. Also, the documentation is pretty good. Check this out for more reference UUID Tools Reference