January 24, 2023
Back-end Developer
Basics of Styling and CSS in React
Posted in: ReactJS TutorialWhat are the benefits of Python?
One of the top benefits of Python is that it is easy to learn and fun to use. Its syntax, unlike most computer languages, reads like English, so it isn’t as stressful to learn as other programming languages. It was named after Monty Python’s Flying Circus, so you know someone had a sense of humor developing this code and thus made it simple to use.
What do you need to learn web development?
Imagine being able to work anytime and from wherever you want. Everything you need for learning web development is a laptop and access to the internet. While not all jobs are available remotely, if that is your choice, there are a lot of web development jobs out there specially catering to remote workers.
What is the benefit of cyber security?
Cybersecurity is critical because it helps to protect organizations and individuals from cyber attacks. Cybersecurity can help to prevent data breaches, identity theft, and other types of cybercrime. Organizations must have strong cybersecurity measures to protect their data and customers.
Why learn C# in 2023?
Many developers prefer C# because it is also a cross-platform language. C# can be used effectively to build applications. One of them is Visual Studio, an integrated development environment (IDE) from Microsoft. It is used to develop computer programs, as well as websites, web apps, web services and mobile apps.
Why learn JavaScript?
The most obvious reason for learning JavaScript is if you have hopes of becoming a web developer. Even if you haven’t got your heart set on a tech career, being proficient in this language will enable you to build websites from scratch—a pretty useful skill to have in today’s job market!
Tuesday, January 24, 2023
ReactJS Tutorial - 19 - Index as Key Anti-pattern
ReactJS Tutorial - 18 - Lists and Keys
A “key” is a special string attribute you need to include when creating lists of elements. Keys give the elements a stable identity. Keys help React identify which items have changed, are added, or are removed. This results in a much more efficient update of the user interface.
Posted in: ReactJS TutorialReactJS Tutorial - 17 - List Rendering
When you build web applications, a common scenario is to display a list of items. For example, a list of names, a list of products, a list of courses and so on. So what we want to is to repeat some HTML for each item in the list. In this video, lets take a look at list rendering in React.
Posted in: ReactJS TutorialReactJS Tutorial - 16 - Conditional Rendering
When you are building React applications, you may often need to show or hide some HTML based on a certain condition. Luckily, conditional rendering in React works the same way conditions work in JavaScript. We have 4 different approaches and we will take a detailed look at all of them. We have if/else, element variables, ternary conditional operator and short circuit operator (&&).
Posted in: ReactJS TutorialReactJS Tutorial - 15 - Methods as props
In this video, we take a look at passing methods as props in React components
Posted in: ReactJS TutorialReactJS Tutorial - 14 - Binding Event Handlers
In this video, lets learn how to bind event handlers in React components.
Posted in: ReactJS TutorialReactJS Tutorial - 13 - Event Handling
Any web application you create typically tends to have user interaction. When the user interacts with your app, events are fired. For example, mouse clicks, mouse over, key press, change event and so on. The application must handle such events and execute the necessary code. In this video, lets see how to handle events in React.
Posted in: ReactJS TutorialReactJS Tutorial - 12 - Destructuring props and state
ReactJS Tutorial - 10 - State
State is similar to props, but it is private and fully controlled by the component.
Posted in: ReactJS TutorialReactJS Tutorial - 9 - Props
props short for properties, is the optional input that your component can accept. It also allows the component content to be dynamic.
Posted in: ReactJS TutorialReactJS Tutorial - 8 - JSX
JavaScript XML (JSX) is an extension to the JavaScript language syntax. With React, it's an extension to write XML-like code for elements and components. And just like XML, JSX tags have a tag name, attributes, and children
Posted in: ReactJS TutorialReactJS Tutorial - 6 - Class Components
Class syntax is one of the most common ways to define a React component. While more verbose than the functional syntax, it offers more control in the form of lifecycle hooks. Creating a class component is pretty simple; just define a class that extends Component and has a render function.
Posted in: ReactJS TutorialReactJS Tutorial - 5 - Functional Components
The simplest way to define a component is to write a JavaScript function. A valid React component because it accepts a single “props” (which stands for properties) object argument with data and returns a React element. We call such components “function components” because they are literally JavaScript functions.
Posted in: ReactJS TutorialSaturday, January 21, 2023
ReactJS Tutorial - 4 - Components
Posted in: ReactJS TutorialReactJS Tutorial - 3 - Folder Structure
ReactJS Tutorial - 2 - Hello World
Create React App is a comfortable environment for learning React, and is the best way to start building a new single-page application in React. It sets up your development environment so that you can use the latest JavaScript features, provides a nice developer experience, and optimizes your app for production.
Posted in: ReactJS TutorialReactJS Tutorial - 1 - Introduction
React is an open source javascript library for building user interfaces. React is a project created and maintained by Facebook. React has more than a 100 thousand stars on GitHub and a huge community behind it. React has become increasingly popular among developers and is also one of the most sought out skill-sets by companies right now. React has a component based architecture. This lets you break down your application into small encapsulated parts which can then be composed to make more complex UI. React is declarative. React will make it painless for you to create complex UIs by abstracting away the difficult parts. React will handle efficiently updating and rendering just the right components in your application when your data changes. DOM updates which is one of the more expensive operations is handled gracefully in React.
Posted in: ReactJS Tutorial#51 JS Closures made EASY | JavaScript Full Tutorial
In this lesson we'll learn all about JS Closures, closures are an advanced JS function concept. By the end of this lesson you will know exactly what they are, how to create them and why we should use them. 0:00 - Intro/Like and Subscribe! 1:00 - Re-cap on JS Scope 5:00 - What is the Lexical environment? 6:45 - What are JS Closures? 9:14 - Lesson Summary 9:53 - Lesson Tasks 12:17 - Outro/Up Next
Posted in: Javascript Tutorial#50 JS Recursion made EASY | JavaScript Full Tutorial
In this lesson we'll learn all about JS Recursion, a recursive function is a function that calls itself inside the function body, and also stops itself.
Posted in: Javascript Tutorial#49 What are Pure Functions? | JavaScript Full Tutorial
Let's learn about pure functions, first we'll look at a definition and then some examples of pure functions in action. 0:00 - Intro - Like and Subscribe 0:36 - What is a Pure Function? 0:53 - Pure Function example 2:40 - Impure Function example 5:55 - Lesson Summary 6:21- Outro/Up Next
Posted in: Javascript Tutorial#48 What are Higher Order Functions? | JavaScript Full Tutorial
In this lesson let's learn all about higher order functions, we'll understand what they are and look at some examples. 0:00 - Intro - Like and Subscribe 0:52 - What are Higher Order Functions? 1:35 - Example 1 - map() 3:06 - Example 2 - addEventListener() 4:45 - Advantages of Higher Order Functions 5:17 - Lesson Summary 5:57 - Outro/Up Next
Posted in: Javascript Tutorial#47 How to use setTimeout() and setInterval() | JavaScript Full Tutorial
In this lesson let's learn all about the timing events setTimeout() and setInterval(), as well as the clear methods clearTimeout() and clearInterval(). So, sometimes we want to control when our function is executed after we invoke it for e.g. we may want to invoke a function 3 seconds after the function has been triggered or we might want our function to repeat every second, we'll learn how to do just that in this lesson as we look at timing events. 0:00 - Intro - Like and Subscribe 0:23 - What are JS timing events? 0:53 - setTimeout() 2:56 - clearTimeout() 5:13 - setInterval() 5:59 - clearInterval() 6:35 - Lesson Summary 7:05 - Lesson Tasks 10:56 - Outro/Up Next
Posted in: Javascript Tutorial#46 How to use Arrow Functions | JavaScript Full Tutorial
In this lesson we'll learn all about Arrow Functions, arrow functions are a new modern way of writing functions, they provide a cleaner and more concise syntax as well as advantages when it comes to the 'this' keyword. By the end of this lesson you will know what arrow functions are, how to write them and when to use them. 0:00 - Intro - Like and Subscribe 0:25 - What are Arrow Functions? 1:16 - Writing an Arrow Function 2:25 - Parentheses syntax 3:20 - Function body syntax 5:48 - Arrows and the 'this' keyword 8:55 - Lesson Summary 9:23 - Lesson Tasks 12:18 - Outro/Up Next
Posted in: Javascript Tutorial#45 What is the Rest Parameter? | JavaScript Full Tutorial
Let's learn all about the Rest Parameter, in this lesson we find out what it is and what it's used for, all with a bunch of examples.
Posted in: Javascript Tutorial#44 What is the Spread Operator? | JavaScript Full Tutorial
Let's learn all about the spread operator, we can use the spread operator with arrays, objects, and function calls. In this lesson we'll look at each of them in detail with plenty of examples, we'll then end by looking at some tasks using the spread operator. 0:00 - Intro - Like and Subscribe 0:27 - What is the Spread Operator? 0:49 - Spread with Arrays 7:57 - Spread with Objects 10:27 - Spread with Functions 11:25 - Lesson Summary 11:50 - Lesson Tasks 15:20 - Outro/Up Next
Posted in: Javascript Tutorial#43 What is JS Destructuring? | JavaScript Full Tutorial
In this lesson we learn how to use the destructuring assignment in javascript, destructuring is the process of pulling properites/variable values out of objects and arrays., by the end of this lesson you'll know how to use destructuring. 0:00 - Intro 0:21 - What is Destructuring? 0:50 - Object Destructuring 4:17 - Destructuring Nested Objects 7:00 - Array Destructuring 9:18 - Destructuring Nested Arrays 10:40 - Lesson Summary 11:19 - Lesson Tasks 15:10 - Outro/Up Next
Posted in: Javascript Tutorial#42 Using Call, Apply and Bind | JavaScript Full Tutorial
In this lesson we'll learn how to use the call, apply and bind methods, as you'll see call, apply and bind allow us to take control of what the 'this' keyword refers to. 0:00 - Intro 0:23 - Quick recap on 'this' 1:06 - Using call 3:20 - Using apply 6:09 - Using bind 8:00 - Lesson Summary 8:39 - Lesson Tasks 11:24 - Outro/Up Next
Posted in: Javascript Tutorial#41 What is the 'this' keyword? | JavaScript Full Tutorial
In this lesson we learn all about the 'this' keyword, we'll explore what it is, the different contexts in which it can be used and defined, and of course we'll look at a ton of examples throughout. SUBSCRIBE and hit the BELL NOTIFICATION 🔔: https://goo.gl/nYLZvz 0:00 - Intro 0:43 - Four ways 'this' can be defined 0:59 - 'this' in the global context 3:30 - 'this' in a method 5:00 - 'this' in nested objects 6:43 - 'this' in DOM event handlers 8:13 - Lesson Summary 9:03 - Lesson Tasks 11:55 - Outro and Up Next
Posted in: Javascript Tutorial#40 Understanding JS Hoisting (EASY Explanation) | JavaScript Full Tutorial
In this lesson we're going to learn all about JS Hoisting. Hoisting is JavaScripts default behaviour where Variables and Function declarations are moved to the top of their scope before code execution. In this lesson we'll learn how hoisting works with tons of examples throughout. 0:00 - Intro 0:34 - What is JS Hoisting? 1:54 - Declaration and Initialisation refresher 2:20 - Variable Hoisting 3:05 - JS Variable Lifecycle 5:54 - Function Hoisting 7:46 - Lesson Summary 8:25 - Lesson Tasks 10:14 - Outro and Up Next
Posted in: Javascript Tutorial#39 Understanding JavaScript Scope | JavaScript Full Tutorial
In this lesson we learn all about JavaScript Scope, understanding scope is a really important part of learning JavaScript, in this lesson we'll do a deep dive and cover global scope, local scope, functional scope and block scope, we'll also see how these all relate to the differences between var, let and const. 0:00 - Intro 0:42 - What is Scope? 1:21 - Global Scope 2:35 - Local Scope 7:27 - Functional Scope 9:20 - Block Scope 11:29 - Lesson Summary 12:19 - Lesson Tasks 15:30 - Outro and Up Next
Posted in: Javascript Tutorial#38. How to use Var, Let and Const | JavaScript Full Tutorial
Let's learn all about the difference between var, let and const. Why do we have three different ways to declare a variable? When is the right time to use either one? In this important lesson we discuss the difference between the different ways to create a variable, and why/when to either use or not use them. 0:00 - Intro 0:20 - The old 'var' keyword 1:37 - Main differences between var, let, const 2:16 - Reassignment 3:38 - Redeclaration 4:34 - Why the change? 5:30 - Lesson Summary 6:02 - Lesson Tasks 8:09 - Outro and Up Next
Posted in: Javascript Tutorial
