Podcast
Questions and Answers
What is the primary role of version control systems like Git in software development?
What is the primary role of version control systems like Git in software development?
- To track changes to source code, enable collaboration, and allow reverting to previous versions. (correct)
- To automatically generate documentation for the software.
- To manage project budgets and timelines.
- To automatically deploy the application to production servers.
In the context of HTML, what is the purpose of attributes within elements?
In the context of HTML, what is the purpose of attributes within elements?
- They provide additional information about the element, such as source URLs or styling classes. (correct)
- They define the basic structure of the HTML document.
- They specify the order in which elements should be rendered on the page.
- They automatically generate the content to be displayed within the element.
Which of the following is NOT a typical stage in the Software Development Life Cycle (SDLC)?
Which of the following is NOT a typical stage in the Software Development Life Cycle (SDLC)?
- Planning
- Deployment
- Testing
- Marketing (correct)
What is the core principle behind Agile development methodologies?
What is the core principle behind Agile development methodologies?
Why is testing considered a critical part of software development?
Why is testing considered a critical part of software development?
What role does JavaScript primarily play in web development?
What role does JavaScript primarily play in web development?
Which of these code blocks is an example of semantic HTML?
Which of these code blocks is an example of semantic HTML?
What is the main difference between let and var when declaring variables in JavaScript?
What is the main difference between let and var when declaring variables in JavaScript?
Which HTML element is used to create a hyperlink?
Which HTML element is used to create a hyperlink?
Which data type is NOT a primitive data type in JavaScript?
Which data type is NOT a primitive data type in JavaScript?
Flashcards
Software Development
Software Development
The process of creating and maintaining applications by conceiving, designing, programming, testing and bug fixing.
Software Development Life Cycle (SDLC)
Software Development Life Cycle (SDLC)
A structured process with stages like planning, analysis, design, implementation, testing, deployment, and maintenance.
Agile Development Methodologies
Agile Development Methodologies
Emphasizes iterative development, collaboration, and rapid response to change. Frameworks include Scrum and Kanban.
Programming Languages
Programming Languages
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Integrated Development Environment (IDE)
Integrated Development Environment (IDE)
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Version Control System
Version Control System
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Software Testing
Software Testing
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HTML
HTML
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JavaScript
JavaScript
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JavaScript Variables
JavaScript Variables
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Study Notes
- Information Technology (IT) encompasses the use of computers, storage, networking, and other physical devices, infrastructure, and processes to create, process, store, secure, and exchange all forms of electronic data.
- IT is used in various sectors like business, healthcare, education, and government to manage information and streamline operations.
- IT professionals perform a variety of duties that range from installing applications to designing complex computer networks, information databases, cloud computing systems, data security, and more.
Software Development
- Software development is the process of conceiving, specifying, designing, programming, documenting, testing, and bug fixing involved in creating and maintaining applications, frameworks, or other software components.
- The software development life cycle (SDLC) is a structured process involving several stages, including planning, analysis, design, implementation, testing, deployment, and maintenance.
- Agile development methodologies emphasize iterative development, collaboration, and rapid response to change. Popular agile frameworks include Scrum and Kanban.
- Programming languages are formal languages used to instruct a computer to perform specific tasks. Examples include Java, Python, C++, and JavaScript.
- Integrated Development Environments (IDEs) provide developers with tools such as code editors, debuggers, and compilers to streamline the coding process.
- Version control systems like Git are used to track changes to source code, enabling collaboration and allowing developers to revert to previous versions if needed.
- Testing is a critical part of software development to ensure quality, identify bugs, and validate that the software meets the specified requirements. Types of testing include unit testing, integration testing, and user acceptance testing.
HTML
- HTML (HyperText Markup Language) is the standard markup language for creating web pages and provides the structure and content of a webpage.
- HTML uses elements, which are denoted by tags, to define different parts of a webpage, such as headings, paragraphs, images, links, and more.
- Elements typically have a start tag and an end tag.
- Common HTML elements include
<h1>to<h6>for headings,<p>for paragraphs,<a>for hyperlinks,<img>for images,<ul>and<ol>for lists, and<div>and<span>for structural divisions. - Attributes provide additional information about HTML elements and are specified within the start tag. Common attributes include
srcfor image sources,hreffor hyperlinks, andclassandidfor applying styles. - HTML documents have a basic structure including the
<!DOCTYPE html>declaration,<html>root element,<head>section for metadata and stylesheet links, and<body>section for the webpage content. - HTML forms are used to collect user input, with the
<form>element containing form controls such as text inputs (<input type="text">), checkboxes (<input type="checkbox">), radio buttons (<input type="radio">), and submit buttons (<input type="submit">). - Semantic HTML uses elements to convey the meaning or purpose of content, rather than just its appearance. Examples include
<article>,<aside>,<nav>,<header>,<footer>, and<main>.
JavaScript
- JavaScript is a high-level, interpreted programming language primarily used to add interactivity and dynamic behavior to websites.
- It can be embedded directly into HTML pages or included as external files.
- JavaScript is a versatile language used for front-end web development (client-side scripting), back-end web development (server-side scripting using Node.js), mobile app development, and more.
- Variables store data values in JavaScript and are declared using
var,let, orconst.letandconstwere introduced in ES6 (ECMAScript 2015) to provide block scope. - Data types in JavaScript include:
- Primitive types: Number, String, Boolean, Null, Undefined, Symbol (ES6).
- Complex types: Object, Array, Function.
- Operators perform operations on variables and values, including:
- Arithmetic operators (+, -, *, /)
- Comparison operators (==, ===, !=, !==, >, <, >=, <=)
- Logical operators (&&, ||, !)
- Assignment operators (=, +=, -=, *=, /=)
- Control flow statements allow different blocks of code to execute based on conditions, including
if,else if,else,switch,for,while, anddo...while. - Functions are reusable blocks of code for specific tasks, defined using the
functionkeyword, and can accept parameters and return values. - Objects are collections of key-value pairs created using curly braces
{}, and can contain properties (variables) and methods (functions). - The Document Object Model (DOM) is a programming interface for HTML and XML documents that represents the page, allowing programs to change the document structure, style, and content, and JavaScript can be used to manipulate the DOM to update the webpage dynamically.
- Event handling allows responses to user actions like clicks, mouseovers, and form submissions, with event listeners attached to HTML elements triggering JavaScript functions when specific events occur.
- Asynchronous JavaScript allows tasks without blocking the main thread, crucial for handling time-consuming operations like fetching data from a server, using:
- Callbacks are functions passed as arguments to other functions and executed after an operation is complete.
- Promises are objects that represent the eventual completion (or failure) of an asynchronous operation and allow you to chain asynchronous operations together.
- Async/Await syntax (introduced in ES8) provides a more readable way to work with promises.
- JavaScript frameworks and libraries provide pre-written code and tools to simplify development. Popular frameworks include React, Angular, and Vue.js; Popular libraries include jQuery.
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