JavaScript basics
JavaScript event loop
Ajax and promises
DOM interaction
JavaScript object orientation
Web Workers
Useful Microframeworks
This presentation has been developed in the context of the Mobile Applications Development course, DISIM, University of L'Aquila (Italy), Spring 2015.
http://www.ivanomalavolta.com
Angular - Chapter 4 - Data and Event HandlingWebStackAcademy
In Angular , events such as button click or any other sort of events can also be handled very easily. The events get triggered from the html page and are sent across to Angular JS class for further processing.
Data binding is a core concept in Angular and allows to define communication between a component and the DOM, making it very easy to define interactive applications without worrying about pushing and pulling data. There are four forms of data binding and they differ in the way the data is flowing.
Learning About JavaScript (…and its little buddy, JQuery!)Julie Meloni
Slides from an internal workshop at the GWU Library on 26 June 2012. The workshop was organized into three parts: "Understanding JavaScript Basics", "About the DOM (Document Object Model)", and "Where JQuery Fits in and How it Works".
jQuery is a fast, small, and feature-rich JavaScript library. It makes things like HTML document traversal and manipulation, event handling, animation, and Ajax much simpler with an easy-to-use API that works across a multitude of browsers. With a combination of versatility and extensibility, jQuery has changed the way that millions of people write JavaScript.
The Browser Object Model (BOM) in JavaScript includes the properties and methods for JavaScript to interact with the web browser.
BOM provides you with window object, for example, to show the width and height of the window. It also includes the window.screen object to show the width and height of the screen.
Angular - Chapter 9 - Authentication and AuthorizationWebStackAcademy
Authentication is the process of validating a user on the credentials (username and password)
and provide access to the web application(ex: Email)
Authorization helps you to control access rights by granting or denying specific permissions
to an authenticated user (Ex: User / Manager / Admin).
Debugging in JavaScript
It is common to have errors while writing codes and the errors can be due to syntax or logical. These errors create a lot of ambiguity in the logic and understanding of both users and programmers. There can also be errors in the code which can remain invisible to the programmer’s eye and can create havoc. To identify these errors we need Debuggers that can go through the entire code or program, identify the errors and also fix them.
-Debugger
The debugger keyword is used in the code to force stop the execution of the code at a breaking point and calls the debugging function. The debugger function is executed if any debugging is needed at all else no action is performed.
JavaScript basics
JavaScript event loop
Ajax and promises
DOM interaction
JavaScript object orientation
Web Workers
Useful Microframeworks
This presentation has been developed in the context of the Mobile Applications Development course, DISIM, University of L'Aquila (Italy), Spring 2015.
http://www.ivanomalavolta.com
Angular - Chapter 4 - Data and Event HandlingWebStackAcademy
In Angular , events such as button click or any other sort of events can also be handled very easily. The events get triggered from the html page and are sent across to Angular JS class for further processing.
Data binding is a core concept in Angular and allows to define communication between a component and the DOM, making it very easy to define interactive applications without worrying about pushing and pulling data. There are four forms of data binding and they differ in the way the data is flowing.
Learning About JavaScript (…and its little buddy, JQuery!)Julie Meloni
Slides from an internal workshop at the GWU Library on 26 June 2012. The workshop was organized into three parts: "Understanding JavaScript Basics", "About the DOM (Document Object Model)", and "Where JQuery Fits in and How it Works".
jQuery is a fast, small, and feature-rich JavaScript library. It makes things like HTML document traversal and manipulation, event handling, animation, and Ajax much simpler with an easy-to-use API that works across a multitude of browsers. With a combination of versatility and extensibility, jQuery has changed the way that millions of people write JavaScript.
The Browser Object Model (BOM) in JavaScript includes the properties and methods for JavaScript to interact with the web browser.
BOM provides you with window object, for example, to show the width and height of the window. It also includes the window.screen object to show the width and height of the screen.
Angular - Chapter 9 - Authentication and AuthorizationWebStackAcademy
Authentication is the process of validating a user on the credentials (username and password)
and provide access to the web application(ex: Email)
Authorization helps you to control access rights by granting or denying specific permissions
to an authenticated user (Ex: User / Manager / Admin).
Debugging in JavaScript
It is common to have errors while writing codes and the errors can be due to syntax or logical. These errors create a lot of ambiguity in the logic and understanding of both users and programmers. There can also be errors in the code which can remain invisible to the programmer’s eye and can create havoc. To identify these errors we need Debuggers that can go through the entire code or program, identify the errors and also fix them.
-Debugger
The debugger keyword is used in the code to force stop the execution of the code at a breaking point and calls the debugging function. The debugger function is executed if any debugging is needed at all else no action is performed.
TypeScript lets you write JavaScript the way you really want to. TypeScript is a typed superset of JavaScript that compiles to plain JavaScript. TypeScript is pure object oriented with classes, interfaces and statically typed like C# or Java. The popular JavaScript framework Angular 2.0 is written in TypeScript. Mastering TypeScript can help programmers to write object-oriented programs and have them compiled to JavaScript, both on server side and client side.
Generally speaking, a function is a "subprogram" that can be called by code external (or internal in the case of recursion) to the function. Like the program itself, a function is composed of a sequence of statements called the function body. Values can be passed to a function, and the function will return a value.
In JavaScript, functions are first-class objects, because they can have properties and methods just like any other object. What distinguishes them from other objects is that functions can be called. In brief, they are Function objects.
jQuery provides a trivially simple interface for doing various kind of amazing effects. jQuery methods allow us to quickly apply commonly used effects with a minimum configuration. This tutorial covers all the important jQuery methods to create visual effects.
A directive is a custom HTML element that is used to extend the power of HTML. Angular 2 has the following directives that get called as part of the BrowserModule module.
ngif
ngFor
If you view the app.module.ts file, you will see the following code and the BrowserModule module defined. By defining this module, you will have access to the 2 directives.
jQuery Selectors
jQuery selectors allow you to select and manipulate HTML element(s).
jQuery selectors are used to "find" (or select) HTML elements based on their name, id, classes, types, attributes, values of attributes and much more. It's based on the existing CSS Selectors, and in addition, it has some own custom selectors.
All selectors in jQuery start with the dollar sign and parentheses: $().
What are Events?
All the different visitors' actions that a web page can respond to are called events.
An event represents the precise moment when something happens.
Examples:
moving a mouse over an element
selecting a radio button
clicking on an element
The term "fires/fired" is often used with events. Example: "The keypress event is fired, the moment you press a key".
It is a brief about JavaScript, To make understand the development and phases of development JavaScript.
It is helpful for beginner as well as intermediate level.
If you like it please comment or like for more updates.
Thanks
TypeScript lets you write JavaScript the way you really want to. TypeScript is a typed superset of JavaScript that compiles to plain JavaScript. TypeScript is pure object oriented with classes, interfaces and statically typed like C# or Java. The popular JavaScript framework Angular 2.0 is written in TypeScript. Mastering TypeScript can help programmers to write object-oriented programs and have them compiled to JavaScript, both on server side and client side.
Generally speaking, a function is a "subprogram" that can be called by code external (or internal in the case of recursion) to the function. Like the program itself, a function is composed of a sequence of statements called the function body. Values can be passed to a function, and the function will return a value.
In JavaScript, functions are first-class objects, because they can have properties and methods just like any other object. What distinguishes them from other objects is that functions can be called. In brief, they are Function objects.
jQuery provides a trivially simple interface for doing various kind of amazing effects. jQuery methods allow us to quickly apply commonly used effects with a minimum configuration. This tutorial covers all the important jQuery methods to create visual effects.
A directive is a custom HTML element that is used to extend the power of HTML. Angular 2 has the following directives that get called as part of the BrowserModule module.
ngif
ngFor
If you view the app.module.ts file, you will see the following code and the BrowserModule module defined. By defining this module, you will have access to the 2 directives.
jQuery Selectors
jQuery selectors allow you to select and manipulate HTML element(s).
jQuery selectors are used to "find" (or select) HTML elements based on their name, id, classes, types, attributes, values of attributes and much more. It's based on the existing CSS Selectors, and in addition, it has some own custom selectors.
All selectors in jQuery start with the dollar sign and parentheses: $().
What are Events?
All the different visitors' actions that a web page can respond to are called events.
An event represents the precise moment when something happens.
Examples:
moving a mouse over an element
selecting a radio button
clicking on an element
The term "fires/fired" is often used with events. Example: "The keypress event is fired, the moment you press a key".
It is a brief about JavaScript, To make understand the development and phases of development JavaScript.
It is helpful for beginner as well as intermediate level.
If you like it please comment or like for more updates.
Thanks
Introduction in the JavaScript Programming language typically used in the front end of Web Applications. More information can be found at : https://www.spiraltrain.nl/course-javascript-programming/?lang=en
Connector Corner: Automate dynamic content and events by pushing a buttonDianaGray10
Here is something new! In our next Connector Corner webinar, we will demonstrate how you can use a single workflow to:
Create a campaign using Mailchimp with merge tags/fields
Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But there’s more:
In a second workflow supporting the same use case, you’ll see:
Your campaign sent to target colleagues for approval
If the “Approve” button is clicked, a Jira/Zendesk ticket is created for the marketing design team
But—if the “Reject” button is pushed, colleagues will be alerted via Slack message
Join us to learn more about this new, human-in-the-loop capability, brought to you by Integration Service connectors.
And...
Speakers:
Akshay Agnihotri, Product Manager
Charlie Greenberg, Host
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
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.
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
Let's dive deeper into the world of ODC! Ricardo Alves (OutSystems) will join us to tell all about the new Data Fabric. After that, Sezen de Bruijn (OutSystems) will get into the details on how to best design a sturdy architecture within ODC.
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.
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.
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
State of ICS and IoT Cyber Threat Landscape Report 2024 preview
An introduction to DOM , JAVASCRIPT , JQUERY, AJAX and JSON
1. The Document Object Model
(DOM)
An introduction to the concept
Presented By Syed Moosa kaleem
2.
3.
4.
5.
6. "The Document Object Model is
a platform- and language-neutral interface
that will allow programs and scripts
to dynamically access and update
the content, structure and style of documents.
The document can be further processed
and the results of that processing
can be incorporated
back into the presented page."
—World Wide Web Consortium (W3C)
7. "A tree of nodes"
• A document is represented as a tree of
nodes of various types.
• Many nodes have 'child' nodes (and any child has a direct
"parent").
• A child is a node. Any node may have "children."
• The "sibling of a node is a node that is on the same level or line,
neither above it or below it.
8. An idea to understand
<div>
<p> This is a <em>new</em> paragraph in an HTML document.
</p>
</div>
The <p>is a child of the <div>.
The <em> is a child of the <p>.
10. What is JavaScript?
• Interpreted programming or scripting language from Netscape.
• Easier to code than the compiled languages like C and C++.
• Lightweight and most commonly used script in web pages.
• Allow client-side user to interact and create dynamic pages.
• Cross-platform and object-oriented scripting language.
• Most popular programming language in the world.
• High level, dynamic and untyped programming language.
• Standardized in the ECMAScript language specification.
• Used for shorter programs
• Takes longer time to process than compiled languages.
11. JavaScript Variables
• There are two types of variables: local and global. You declare local variables
using the var keyword and global variables without using the var keyword.
• With the var keyword the variable is considered local because it cannot be
accessed anywhere outside the scope of the place you declare it.
• For example, declaring a local variable inside a function, it cannot be accessed
outside of that function, which makes it local to that function.
• Declaring the same variable without the var keyword, it is accessible
throughout the entire script, not only within that function. Which makes it
global within script tag.
• Declaring a local variable
var num = 10;
• To access the value of the num variable at another point in the script, you
simply reference the variable by name Ex:
document.write("The value of num is: "+ num);
12. JavaScript Operators
• You need operators when performing any operation in the
JavaScript language.
• Operations include addition, subtraction, comparison, and so
on. There are four types of operators in the JavaScript
language.
• Arithmetic.
• Assignment .
• Comparison .
• Logical
13. Arrays
• Arrays are similar to variables, but they can hold multiple values.
• There is no limit to the amount or type of data that you can store in a
JavaScript array.
• We can access any value of any item in an array at any time after
declaring it.
• Arrays can hold any data type in the JavaScript language.
• Arrays can store only similar data in any one array.
• Storing similar values in an array
• var colors new Array("orange", ' 'blue", " red", "brown");
var shapes new Array("circle", "square", "triangle", " pentagon");
• Accessing values in an array is easy, but there is a catch. Arrays always start
with an ID of O, rather than 1.
• To access an array item you must use its ID, which refers to the item's
position in the array.
14. Functions
• Functions are containers for script that is only to be executed by an
event or a call to the function.
• Functions do not execute when the browser initially loads and
executes the script that is included in a web page.
• The purpose of a function is to contain script that has a task so that
you then have the ability to execute that script and run that task at
any time.
• Structuring a simple function
var num 10;
function changeVariableValue() {
num -11;
changeVariableValue();
document.write("num is: "+ num); }
15. Using JavaScript in HTML code
<!DOCTYPE html>
<html>
<body>
<p>A typical arithmetic operation takes two numbers and produces a new number.</p>
<p id="demo"></p>
<script>
var x = 100 + 50;
document.getElementById("demo").innerHTML = x;
</script>
</body>
</html>
17. What is jQuery?
• JavaScript library.
• Cross-browser support.
• Aimed for client-side scripting.
• Released in 2006.
• Most popular JS library today
• FOSS (Free and Open Source Software).
• www.jquery.com
18. jQuery features
• DOM elements: select, modify .
• Events.
• CSS handling
• Flashy effects
• Ajax
• Very easy to use!
19. Examples
• $(“div ") Selects all divs
• $(".myClass") Selects all items with myClass class
• $("#myld") Selects all items with myld id (should be just one!)
• $("div.myClass") Selects all divs with myClass class.
• $("div.myClass").append(“<p>Text appended</p>”); Appends
paragraph
• $("#myld").css({font-size:15px});
20. Test page
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
$("p").click(function(){
$(this).hide();
});
});
</script>
</head>
<body>
<p>If you click on me, I will disappear.</p>
<p>Click me away!</p>
<p>Click me too!</p>
</body>
</html>
21. jQuery Event Methods
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
$("p").click(function(){
$(this).hide();
});
});
</script>
</head>
<body>
<p>If you click on me, I will disappear.</p>
<p>Click me away!</p>
<p>Click me too!</p>
</body>
</html>
22. jQuery - AJAX Introduction
• AJAX = Asynchronous JavaScript and XML.
• AJAX is the art of exchanging data with a server, and updating parts of
a web page - without reloading the whole page.
• Examples of applications using AJAX: Gmail, Google Maps, Youtube,
and Facebook tabs.
• jQuery provides several methods for AJAX functionality.
• With the jQuery AJAX methods, you can request text, HTML, XML, or
JSON from a remote server using both HTTP Get and HTTP Post - And
you can load the external data directly into the selected HTML
elements of your web page!
24. jQuery Effects - Animation
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
$("button").click(function(){
$("div").animate({left: '250px'});
});
});
</script>
</head>
<body>
<button>Start Animation</button>
<p>By default, all HTML elements have a static position, and cannot be moved. To manipulate the position, remember to first set the CSS position
property of the element to relative, fixed, or absolute!</p>
<div style="background:#98bf21;height:100px;width:100px;position:absolute;"></div>
</body>
</html>
25. AJAX Introduction
• AJAX = Asynchronous JavaScript And XML.
• AJAX is not a programming language.
• AJAX is a developer's dream, because you can:
• Update a web page without reloading the page
• Request data from a server - after the page has loaded
• Receive data from a server - after the page has loaded
• Send data to a server - in the background
26. Real-Life Examples of AJAX
• Google Maps
- http://maps.google.com/
• Google Suggest
http :/ /www.google.com/
• Gmail
- http://gmail.com/
27. AJAX Basics
• AJAX uses XMLHttpRequest
• JavaScript communicates directly with the server, through
the JavaScript XMLHttpRequest object .
• With an XMLHTTPRequest, a web page can make a
request to, and get a response from a web server - without
reloading the page.
33. Cross Domain Ajax
• A common problem for developers is a browser to refuse access to a
remote resource. Usually, this happens when you execute AJAX cross
domain request using jQuery or plain XMLHttpRequest.
34. Introduction to JSON
• What is JSON?
• JSON stands for JavaScript Object Notation. JSON objects are used for
transferring data between server and client.
• JSON is a subset of JavaScript. ( ECMA-262 ).
• Language Independent, means it can work well with most of the modern
programming language
• Text-based, human readable data exchange format
• Light-weight. Easier to get and load the requested data quickly.
• Easy to parse.
• JSON is very stable
• official Internet media type for JSON is application/json.
• JSON Is Not XML.
• JSON is a simple, common representation of data.
35. JSON Syntax
• { "name":"John" }
• JSON Uses JavaScript Syntax
• Because JSON syntax is derived from JavaScript object notation, very
little extra software is needed to work with JSON within JavaScript.
• var person = { "name":"John", "age":31, "city":"New York" };
36. JSON Data Types
• In JSON, values must be one of the following data types:
• a string
• a number
• an object (JSON object)
• an array
• a boolean
• null
38. JSON.parse()
• A common use of JSON is to exchange data to/from a web server.
• When receiving data from a web server, the data is always a string.
• Parse the data with JSON.parse(), and the data becomes a JavaScript object.
• Example
• <!DOCTYPE html>
• <html>
• <body>
• <h2>Create Object from JSON String</h2>
• <p id="demo"></p>
• <script>
• var obj = JSON.parse('{ "name":"John", "age":30, "city":"New York"}');
• document.getElementById("demo").innerHTML = obj.name + ", " + obj.age;
• </script>
• </body>
• </html>
39. JSON.stringify()
• A common use of JSON is to exchange data to/from a web server.
• When sending data to a web server, the data has to be a string.
• Convert a JavaScript object into a string with JSON.stringify().
• <!DOCTYPE html>
• <html>
• <body>
• <h2>Create JSON string from a JavaScript object.</h2>
• <p id="demo"></p>
• <script>
• var obj = { "name":"John", "age":30, "city":"New York"};
• var myJSON = JSON.stringify(obj);
• document.getElementById("demo").innerHTML = myJSON;
• </script>
• </body>
• </html>
40. Thank You!
For more info you can visit my YouTube Channel
EPICOP
https://www.youtube.com/channel/UCILksVrhIlS-pxcFqvFHM4A