Reactive Cocoa is an Objective-C framework that treats streams of values as signals that can be combined, transformed, and manipulated. It is based on the concept of functional reactive programming and provides signals to represent user interface elements and other values that change over time. This allows UI updates and other behaviors to be modeled as signals that can be combined declaratively.
In this session we will go over the fundamentals of functional programming and see how functional programming can help make our code more reusable, stable, scalable and fun.
In this session we will go over the fundamentals of functional programming and see how functional programming can help make our code more reusable, stable, scalable and fun.
In computer programming, operator overloading, sometimes termed operator ad hoc polymorphism, is a specific case of polymorphism, where different operators have different implementations depending on their arguments. Operator overloading is generally defined by a programming language, a programmer, or both.
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Java 8 Streams And Common Operations By Harmeet Singh(Taara)Harmeet Singh(Taara)
In this, we are discuss about Java 8 Streams. Common Operations . Java 8 Streams are huge topic, so i am not cover all the things, but try to cover the basics operations of Streams. Before this, please refer my previous presentation "Functional programming in java 8", because of clear some basic concept for functional programming. For the reference use Java 8 API docs.
In computer programming, operator overloading, sometimes termed operator ad hoc polymorphism, is a specific case of polymorphism, where different operators have different implementations depending on their arguments. Operator overloading is generally defined by a programming language, a programmer, or both.
↓↓↓↓ Read More:
@ Kindly Follow my Instagram Page to discuss about your mental health problems-
-----> https://instagram.com/mentality_streak?utm_medium=copy_link
@ Appreciate my work:
-----> behance.net/burhanahmed1
Thank-you !
Java 8 Streams And Common Operations By Harmeet Singh(Taara)Harmeet Singh(Taara)
In this, we are discuss about Java 8 Streams. Common Operations . Java 8 Streams are huge topic, so i am not cover all the things, but try to cover the basics operations of Streams. Before this, please refer my previous presentation "Functional programming in java 8", because of clear some basic concept for functional programming. For the reference use Java 8 API docs.
Modern Programming in Java 8 - Lambdas, Streams and Date Time APIGanesh Samarthyam
This presentation provides a comprehensive overview of modern programming in Java. It focuses only on Java 8 features: Lambdas, Streams and Date Time API. It also briefly covers refactoring legacy Java code to Java 8.
Scala er et Java-relateret, statisk typet programmeringssprog i hastig fremmarch. Sproget kombinerer aspekter fra objekt- og funktionsorienterede sprog og fokuserer på skalerbarhed og effektivitet, både på det kodemæssige og afviklingsmæssige niveau. Syntaksen er elegant og koncis. Samtidig indeholder sproget stærke konstruktioner til understøttelse af parallelle applikationer, der udnytter fremtidens hardwarearkitekturer.
Lambdas and Streams Master Class Part 2José Paumard
These are the slides of the talk we made with Stuart Marks at Devoxx Belgium 2018. This second part covers the Stream API, reduction and the Collector API.
What is the state of lambda expressions in Java 11? Lambda expressions are the major feature of Java 8, having an impact on most of the API, including the Streams and Collections API. We are now living the Java 11 days; new features have been added and new patterns have emerged. This highly technical Deep Dive session will visit all these patterns, the well-known ones and the new ones, in an interactive hybrid of lecture and laboratory. We present a technique and show how it helps solve a problem. We then present another problem, and give you some time to solve it yourself. Finally, we present a solution, and open for questions, comments, and discussion. Bring your laptop set up with JDK 11 and your favorite IDE, and be prepared to think!
A talk given at the Tokyo iOS Meetup on November 18th, 2017. It explains why, after about two years of being a strong Auto Layout advocate, I am drifting back to manual layout. This progression happened because, after finding a layout that was difficult to achieve with Auto Layout and resorting to manual layout in one specific case, I found that, by writing some very simple functions, I could achieve many of the same layouts as Auto Layout with a similar code size.
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Generating a custom Ruby SDK for your web service or Rails API using Smithyg2nightmarescribd
Have you ever wanted a Ruby client API to communicate with your web service? Smithy is a protocol-agnostic language for defining services and SDKs. Smithy Ruby is an implementation of Smithy that generates a Ruby SDK using a Smithy model. In this talk, we will explore Smithy and Smithy Ruby to learn how to generate custom feature-rich SDKs that can communicate with any web service, such as a Rails JSON API.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
Kubernetes & AI - Beauty and the Beast !?! @KCD Istanbul 2024Tobias Schneck
As AI technology is pushing into IT I was wondering myself, as an “infrastructure container kubernetes guy”, how get this fancy AI technology get managed from an infrastructure operational view? Is it possible to apply our lovely cloud native principals as well? What benefit’s both technologies could bring to each other?
Let me take this questions and provide you a short journey through existing deployment models and use cases for AI software. On practical examples, we discuss what cloud/on-premise strategy we may need for applying it to our own infrastructure to get it to work from an enterprise perspective. I want to give an overview about infrastructure requirements and technologies, what could be beneficial or limiting your AI use cases in an enterprise environment. An interactive Demo will give you some insides, what approaches I got already working for real.
Essentials of Automations: Optimizing FME Workflows with ParametersSafe Software
Are you looking to streamline your workflows and boost your projects’ efficiency? Do you find yourself searching for ways to add flexibility and control over your FME workflows? If so, you’re in the right place.
Join us for an insightful dive into the world of FME parameters, a critical element in optimizing workflow efficiency. This webinar marks the beginning of our three-part “Essentials of Automation” series. This first webinar is designed to equip you with the knowledge and skills to utilize parameters effectively: enhancing the flexibility, maintainability, and user control of your FME projects.
Here’s what you’ll gain:
- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
- Practical Applications in FME Form: Delve into key user parameter types including choice, connections, and file URLs. Allow users to control how a workflow runs, making your workflows more reusable. Learn to import values and deliver the best user experience for your workflows while enhancing accuracy.
- Optimization Strategies in FME Flow: Explore the creation and strategic deployment of parameters in FME Flow, including the use of deployment and geometry parameters, to maximize workflow efficiency.
- Pro Tips for Success: Gain insights on parameterizing connections and leveraging new features like Conditional Visibility for clarity and simplicity.
We’ll wrap up with a glimpse into future webinars, followed by a Q&A session to address your specific questions surrounding this topic.
Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
2. Reactive Cocoa
Reactive Cocoa is a third-party Objective C
framework which has received some interested and a
community-following.
3. Functional Programming
Functional programming is a style of programming based on a formal model of computation called lambda calculus.
Some programming languages such as Lisp (and its children Scheme and Clojure), Haskell, Scala, ML called functional
programming languages because they are very amenable to this style of programming, although it can technically be
done with many other languages.
Languages like C, Objective C, and Java are called imperative because programs are often written in a different style and
these languages support that style.
For our purposes, functional programming means programs are composed of functions.
f(x) = x+5, g(x) = x+2
We can evaluate functions which are composed together by substitution.
f(g(4))
f(4+2)
f(6)
6+5
11
Given an input, we always get the same output.
4. Functional programming tend to operate on lists, which are seen as a sequences of values.
list = (1, 2, 3)
Calling it a sequence is important. Generally, lists are treated as the first element (head) and
the rest of the elements besides the head.
list.head = 1, list.tail = (2, 3)
This is different from an array where any element can be accessed at one time.
list[2]
This approach has the advantage of allowing some programs to be written in a recursive
style.
int maxValue(currentMax, list) {
if (list.empty) return currentMax
else if (list.head > currentMax) return maxValue(list.head, list.tail)
else maxValue(currentMax, list.tail)
}
Also: infinite streams.
5. The ability to have that kind of mutable state is forbidden in
pure functional programming. In practice, pure functional
programming does not have assignment.
(Maybe languages that support functional programming do,
in fact, allow assignment.)
It turns out, this is an excellent feature for designing
applications that work with concurrency. This is one
reason why functional programming has received a lot of
interest recently (and why, for example, Apple brought
blocks to C / Objective C in 2009).
6. But following this rule presents a challenge for
working with user input.
Imagine you wanted to write a function which gets
keystrokes one character at a time.
char getCharacter();
This function is not really compatible with functional
styles of programming, because it might return any
character from the same input (in this case,
nothing).
8. Functional Reactive Programming
There are a lot of various implementations of
Functional Reactive Programming (e.g. Elm).
It handles the problems of dealing with user input by
treating it as the parameters of functions, executing
them again and again as the input changes.
function ( ) {
}
9. Reactive Cocoa
Based on Microsoft’s Rx Extensions.
Developed by engineers at GitHub.
It is quite large. It may be best to consider it an
extension to the Objective C language.
My plan is only to demonstrate some practical
examples, focusing on the concept of signals.
14. Note on Concurrency
No two subscription blocks can be called
simultaneously to avoid deadlock.
You can control which thread the subscription block is
called on with RACScheduler
This allows for signals to mimic an
NSOperationQueue.
15. Conclusion
ReactiveCocoa is based on some relatively abstract
concepts but these concepts turn out to be very, very
powerful in practice.
Signals, for example, may be able to replace KVO,
operation queues and delegation in an app. I have
barely touched the available feature set in these
examples.
16. Conclusion
It does require a lot of abstract thinking to determine
how to model your apps behavior as a series of
signals.
For this reason, there is a learning curve associated
with it.
Personally, I am very likely use it in the future.