Episode 15 - Basics of Javascript
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This document provides an overview and agenda for a session on JavaScript basics. It introduces concepts like hoisting, differences between var, let and const, arrow functions, recursion, arguments.callee, memoization, and promises. It also briefly discusses the history of JavaScript, from its creation in 1995 and renaming to JavaScript in 1996 to the introduction of EcmaScript to standardize the language. The agenda outlines explanations and demonstrations of these JavaScript fundamentals concepts.
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Aarti Parikh goes over the Go language design and talks about why Go matters in the age of multicores and cloud-native computing. Filmed at qconsf.com.
Aarti Parikh is a software engineering manager with a decade of experience building teams and products for the Internet, IoT and now Fintech. Currently, she works at PayPal.
No Compromise - Better, Stronger, Faster Java in the Cloud
Presented at All Things Open 2022
Presented by Jarek Gawor & Harry L. Hoots, III
Title: No Compromise - Better, Stronger, Faster Java in the Cloud
Abstract: Innovation in the cloud-era is about driving efficiencies, agility, and greater opportunities to deploy workloads to the cloud of your choice. Join us as we explore critical challenges faced by organizations in their move to cloud-native architectures along with the innovation in Java standards, including MicroProfile and Jakarta EE, and emerging technologies that help them build and deploy their applications on any cloud, faster and with better performance. Throughout, we showcase Open Liberty, the open-source, cloud-optimized runtime, that is delivering on the promise of this innovation to enable rapid delivery of highly scalable and performant applications, without compromise.
Mern stack developement
MERN is one of several MEAN stack (MongoDB Express Angular Node) variants in which the traditional Angular.js frontend framework is replaced with React.js. MEVN (MongoDB, Express, Vue, Node) is another variant, and really any frontend JavaScript framework can work.Node.js is a popular and powerful JavaScript server platform, and Express.js is a server-side web framework. Regardless of which variant you choose, ME(RVA)N is the best way to work with JavaScript and JSON from start to finish.
DURATION:60 days
Accelerate your career in Java.pptx
Java is one of the most popular programming languages in the whole world. It was developed by James Gosling at Sun Microsystems. It’s a core component and powers the dynamic Java platform. It follows the principle, “Write once, Run everywhere at any time.” This is the biggest benefit of Java. Once, you have written the code, it’s supported by all platforms and doesn’t require any further edits. This attribute of JAVA makes it accessible on distributed systems like the Internet. This is why JAVA continues to be the most popular choice of web and app developers.
CETPA offer the best Java Training in Noida and bring out the programmer in you. Learn to code and get placed at the best companies in the industry with attractive pay. CETPA Infotech also provide Best Java Course in Noida.
Nashorn
Rory Preddy's document summarizes the history and capabilities of JavaScript engines Rhino and Nashorn. It begins with the origins of JavaScript as a portable version of Java created by Netscape. It then discusses Rhino, an early JavaScript engine implemented in Java that compiles JavaScript to Java bytecodes slowly. Nashorn, introduced in Java 8, is 20x faster than Rhino as it compiles JavaScript directly to bytecodes without an intermediate compilation step. Nashorn also improves type handling and has a smaller memory footprint than Rhino. The document demonstrates key features of Rhino and Nashorn like script evaluation, function invocation, and lambda expressions.
How to crack java script certification
1) The document provides an outline for a webinar on preparing for the Salesforce Certified JavaScript Developer I certification.
2) It covers key topics like variables, types, objects, functions, classes, debugging, asynchronous programming and testing. Sample questions are provided for each topic.
3) Valuable online resources for preparation are suggested, including blogs, video tutorials and sample question sites. Tips are given on time management during the exam and relying on conceptual understanding over guessing.
Continuous Deployment: Startup Lessons Learned
The document describes WiredReach's process for implementing continuous deployment. It discusses how they moved from bi-weekly release cycles with large releases to releasing multiple times per day with releases containing under 25 lines of code. This was done by setting up automated testing and deployment pipelines. It also touches on some of the challenges they faced in taking this approach and strategies for incrementally building systems to support continuous deployment like adding production monitoring and building a "cluster immune system".
Undercover Scrum Master - Agile2019
After three years as a Scrum Master and Agile coach, I hit a wall coaching a team that did not want to try popular Agile engineering techniques such as TDD and pair programming. I had become a Scrum Master after four years working on the business analysis and account ownership side of things and could not speak from personal experience about engineering practices. In order to get some first-hand experience and to gain a new perspective, I chose to spend a year or two as a software developer on a Scrum team.
The experience has been eye-opening. I experienced a tremendous cognitive load working with a wide array of technologies; this pulled my attention away from many of the collaborative and process-oriented activities I cared about as a Scrum Master. I was surprised to feel strong pressure to complete work quickly, cutting corners, even when the Product Owner and Scrum Master were not asking me to. When this pressure was explicit, it usually came from my fellow developers. On the other hand, there is real joy in writing code and seeing a system do something worthwhile that it wasn't doing before. My outlook has changed tremendously and is something I want to share with anyone who works with development teams, especially Scrum Masters and other coaches. I am still enjoying my time as a developer, but I'm looking forward to returning to coaching and incorporating this experience into my approach.
Slides for my presentation at Agile2019 (https://agile2019.sched.com/event/OD8A/undercover-scrum-master-dane-weber)
Internship softwaretraining@ijse
This presentation is regarding on the Internship first industrial training at IJSE. This is a partial fulfillment of Industrial training module in Department of Electrical and Information Engineering,Faculty of Engineering, University of Ruhuna.
1.Intro--Why Java.pptx
This document provides an overview of the Java programming language. It discusses that Java was created in 1995 by James Gosling at Sun Microsystems, originally for television devices but was found to be better suited for internet applications. Java remains popular due to its practicality, backwards compatibility, scalability, platform independence through bytecode, and portability. The document also covers Java editions, a simple Java program example, and key concepts like classes, methods, and the main method.
JAVA INTRODUCTION
This document provides an overview of the Java programming language. It discusses what Java is, how to write and compile Java code, classes and objects in Java, differences between Java and C++, advantages and disadvantages of Java. Key points covered include Java being a platform-independent, object-oriented language developed by Sun Microsystems, the structure of a Java program using classes and the main method, and how to output text and variables using print statements.
SFScon 21 - Davide Montesin - Typescript vs. Java
Javascript is the language used the most for developing a web app or a hybrid mobile app, mainly because it can be executed directly by browsers. Java instead, can’t be run directly in a browser. On the other hand we have the language TypeScript, which is an open-source language that adds compile time type checking to Javascript, similar to Java, with the goal to prevent bugs mainly in the large code base. It is not uncommon for developers to write code using more than one programming language over time.
In this talk you will find out, how I survived adding Typescript/Javascript to the programming languages I work with, after a long experience of development with Java. Let’s go!
Technical Debt and Requirements
Technical debt is often characterized as design or code tradeoffs. In this talk I discuss how shortcuts in requirements analysis might lead to technical debt as well.
Jvm
The document discusses the Java Virtual Machine (JVM). It defines the JVM as an abstract machine that provides a runtime environment for executing Java bytecode. It explains that the JVM performs four main tasks: loading code, verifying code, executing code, and providing a runtime environment. It also discusses the differences between the Java Runtime Environment (JRE), Java Development Kit (JDK), and JVM.
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Episode 13 - Advanced Apex Triggers
The document discusses implementing advanced triggers in Apex using a trigger handler pattern. It begins with an agenda that includes challenges with triggers, trigger patterns, anatomy of a handler pattern, implementing an advanced pattern, and order of execution. It then discusses challenges like maintenance, non-deterministic execution, and infinite loops. The handler pattern is presented as a solution that enforces best practices, promotes clean code and reusability, and prevents issues. A demo is provided of implementing the pattern. Resources on triggers, patterns, and order of execution are listed along with Trailhead modules on the topic.
Episode 18 - Asynchronous Apex
This document discusses asynchronous Apex in Salesforce, including future methods and queueable Apex. It provides an overview of asynchronous Apex, why it is used, different asynchronous Apex approaches, and compares future methods and queueable Apex. The agenda includes explaining asynchronous Apex, reasons for using it like avoiding governor limits and allowing callouts from triggers, asynchronous governor limits, future methods, queueable Apex, and a demo.
Episode 21 - Design Pattern 1
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Episode 20 - Trigger Frameworks in Salesforce
This document discusses trigger frameworks in Salesforce and their benefits. It provides an overview of trigger execution order and common patterns for writing trigger frameworks, including the trigger handler and interface-based patterns. The document demonstrates examples using these patterns. Trigger frameworks provide benefits like consistent execution, preventing recursion, improved testability and maintainability. Choosing the right framework depends on factors like complexity, extensibility and code reusability. Resources for learning more about trigger frameworks are also provided.
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Episode 12 - Basics of Trigger
This document provides an overview of Apex triggers in Salesforce, including:
1. Apex triggers enable custom actions before or after changes to Salesforce records like inserts, updates, or deletions. Triggers execute based on insert, update, delete, merge, upsert, or undelete operations.
2. Context variables provide information about the trigger context like isExecuting, isInsert, and record collections like new, newMap, old, and oldMap.
3. Before triggers are used to update or validate record values before they are saved, while after triggers can access system-set field values and affect other records through logging or asynchronous events. Records in after triggers are read-only.
Episode 11 building & exposing rest api in salesforce v1.0
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Episode 10 - External Services in Salesforce
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Episode 14 - Basics of HTML for Salesforce
This document provides an agenda and overview for an introduction to HTML coding basics. It includes 3 sentences:
The document outlines an agenda to cover introduction to HTML tags, text formatting, headings, paragraphs, comments, images, links, lists, forms, tables, cascading style sheets (CSS), and various CSS properties. It provides examples of common HTML elements and tags as well as how to structure an HTML page and insert different types of content. The session will conclude with allowing time for questions and answers.
South East Dreamin 2019
This document discusses setting up Continuous Integration using SalesforceDX and Jenkins. It covers:
1. The problem of long, complex builds and the need to reduce time from development to production.
2. An overview of Jenkins and why it is used for Continuous Integration, including that it is open source and has over 1000 plugins.
3. The history and evolution of Jenkins from its origins in Hudson to becoming the dominant CI tool today.
4. The concepts of Continuous Integration, Continuous Delivery, and Continuous Deployment and how branching strategies fit in.
5. A demo of setting up Jenkins and SFDX for Continuous Integration, including creating certificates, connected apps, environment variables, and Jenkins projects
Episode 9 - Building soap integrations in salesforce
API Communication Basics
What is SOAP?
Consuming External SOAP Services in Salesforce
Performing SOAP Callouts
Testing SOAP Callouts
SOAP Vs REST – When to choose what?
Q&A
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Basics of JSON
What is API
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Using cURL to consume Rest API
Using Postman to consume Rest API
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Episode 6 - DML, Transaction and Error handling in Salesforce
This document provides an agenda and overview for a session on performing data manipulation language (DML) operations and handling errors in Salesforce. It discusses how to insert, update, delete, upsert, undelete, and merge records using DML. It also covers bulk DML, database methods for DML, transaction control using savepoints and rollbacks, and handling errors. The session aims to teach attendees how to manipulate records and handle errors when working with data in Salesforce.
Episode 5 - Writing unit tests in Salesforce
The document provides an agenda for a session on writing unit tests in Apex. It discusses why unit tests are important in Apex, how to structure test classes, best practices for testing, and resources for learning more about Apex testing. The session demonstrates executing unit tests and techniques like accessing private members, running tests within limits, and creating test data. Attendees are encouraged to ask questions during the last 15 minutes.
Lightning Web Component in Salesforce
1. Lightning Web Components introduce a new programming model built on modern web standards that provides enhanced productivity, performance, and compatibility.
2. They allow more code to be executed by the browser instead of JavaScript abstractions for improved performance.
3. Lightning Web Components can coexist and interoperate with existing Lightning components and can be composed with clicks or code.
Episode 4 - Introduction to SOQL in Salesforce
SOQL is used to query records from the Salesforce database. It includes clauses like SELECT, FROM, WHERE, GROUP BY, HAVING, ORDER BY, and LIMIT. The WHERE clause restricts rows returned using conditions, operators like equal, not equal, less than and logical operators. Relationship and aggregate functions can also be used. SOQL in Apex allows querying records in batches of 200 using for loops. SOSL performs full text searches across objects and includes clauses like FIND, IN, and RETURNING.
Episode 3 – Classes, Inheritance, Abstract Class, and Interfaces
This document provides an overview of key object-oriented programming concepts in Salesforce including classes, objects, inheritance, abstract classes, and interfaces. It discusses how classes define objects, how to instantiate objects, access specifiers, static methods, inheritance which allows extending existing classes, abstract classes which define common methods, and interfaces which enforce method signatures. Code examples are provided to demonstrate these concepts. The document also recommends books for learning Apex at different skill levels and includes an agenda and rules for the session.
Episode 2 conditional flows & loops
Conditional Flow in Salesforce and types of Loop. Episode 2 details are here - http://pathtocode.com/salesforce/developer/episode-2-conditional-statements-loops/
Episode 1 - PathToCode.com
This document provides an overview and introduction to coding in Salesforce, including why coding is needed, the developer console, naming conventions, data types, collections, pass by value vs reference, and Trailhead modules to get started. It discusses primitive data types like Boolean, Date, Decimal, and String, as well as collections like Lists, Maps, and Sets. It also covers naming conventions like camel case and pascal case.
Build sfdx plugin in 15 minutes
The document discusses how to build a Salesforce DX plugin in 15 minutes. It provides an overview of Salesforce DX and the Salesforce CLI. Salesforce DX allows developers to create custom plugins on top of the Salesforce CLI. The presenters demonstrate how to generate a basic Salesforce DX plugin using the plugin generator. It requires knowledge of Node.js, TypeScript, and using Yarn for dependency management. The plugin can then connect to Salesforce orgs and use the REST API. Resources are provided to learn more about Salesforce DX, the CLI, and creating custom plugins.
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Episode 15 - Basics of Javascript
- 1. Path to Code Begin Your Salesforce Coding Adventure
- 2. Episode 15 Basics of JavaScript
- 3. Jitendra Zaa Salesforce MVP Sr Technical Architect 23x Certified @Jitendra Zaa Speaker
- 4. Some House Rules • Please mute your mic • Keep adding questions in Zoom Q&A Window • No question is too small • Questions will be answered in last 15 mins
- 5. Agenda • Introduction to JavaScript • Hoisting • var vs let vs const • Different ways to write functions • Arrow Functions • Recursion • Arguments.Callee • Memoization • Promises
- 7. 1995 • Mocha created by Brendan Eich in 10 days • Renamed to LiveScript Officially • To piggyback popularity of Java, renamed to JavaScript • Worried about Java Trademark, Microsoft released its own version of JavaScript as JScript
- 8. 1996 • Worried about future and standardization , Ecma group was introduced to decide feature and capabilities of language • EcmaScript was trademarked by Ecma group to define the standard of JavaScript
- 11. Hoisting
- 12. Hoisting The process of assigning variable declarations a default value of undefined during the creation phase is called Hoisting.
- 13. Demo 1 Hoisting
- 14. Var Var : function scoped undefined when accessing a variable before it’s declared
- 15. let let : block scoped ReferenceError when accessing a variable before it’s declared
- 16. const const : block scoped ReferenceError when accessing a variable before it’s declared Can’t be reassigned
- 17. Demo 2 Different ways to write functions
- 18. Demo 3 Sequence of Method matters ?
- 19. Demo 4 Recursion
- 21. Arrow Functions
- 22. Arrow Function var multiplyES5 = function(x, y) { return x * y; }; const multiplyES6 = (x, y) => { return x * y };
- 23. Memoization Memoization is programming practice in which returned results from functions are saved in cache, thus boosting the performance of long running / iterative methods.
- 24. Demo 6 Memoization and Arrow Methods
- 25. Promises Are Asynchronous Has three states 1. Pending 2. Fulfilled 3. Rejected
- 26. Reference • Secrets of Javascript by John Resig • Hoisting • Arrow Functions
- 27. Q&A
- 28. Next Episode 16 Getting Started with Lightning Web Components
- 29. Thanks