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Web & Mobile

40 terms

Everything about web development, mobile apps, frontend and backend development.

C

CMS

A CMS (Content Management System) is software that enables users to create, manage, and modify website content without needing technical knowledge of HTML, CSS, or programming. Popular platforms like WordPress, Drupal, and Strapi provide user-friendly interfaces for content editing, media management, user permissions, and website customization through themes, plugins, or APIs.

marketing

CORS

CORS (Cross-Origin Resource Sharing) is a security mechanism that controls which web applications can make requests to domains different from their own. Browsers enforce the same-origin policy by default, blocking cross-origin requests to protect users. CORS headers from the server specify which origins, HTTP methods, and headers are permitted, enabling controlled cross-origin communication.

frontend

CRUD

CRUD stands for Create, Read, Update, and Delete, representing the four basic operations for persistent storage that nearly every data-driven application implements. In web development, CRUD operations map to HTTP methods (POST for Create, GET for Read, PUT/PATCH for Update, DELETE for Delete) and SQL statements (INSERT, SELECT, UPDATE, DELETE). Understanding CRUD is fundamental to building any application that stores data.

database

CSS

CSS (Cascading Style Sheets) is a stylesheet language used to describe the presentation of HTML documents. It controls how elements are displayed on a web page, including colors, fonts, spacing, positioning, and responsive behavior. CSS lets you separate content (HTML) from presentation.

programming frontend design

CSS Grid

CSS Grid is a two-dimensional layout system that allows you to create complex grid-based layouts with rows and columns simultaneously. Unlike Flexbox which works in one direction at a time, Grid lets you control both horizontal and vertical placement of elements, making it ideal for overall page layouts, image galleries, and complex component arrangements.

css
D

DELETE

DELETE is an HTTP method used to remove a resource from the server. Like GET and PUT, DELETE is idempotent, meaning deleting the same resource multiple times has the same effect: the resource is gone. After successful deletion, servers typically respond with 200 OK including a confirmation message, 204 No Content with an empty body, or 202 Accepted if deletion is queued for later.

frontend backend

DOM

The Document Object Model (DOM) is a programming interface that represents an HTML document as a tree structure where each element, attribute, and piece of text becomes a node. JavaScript can interact with this tree to dynamically read, modify, add, or delete elements on a webpage, enabling interactive and dynamic user experiences without reloading the page.

javascript html

Docker

Docker is an open-source platform that enables containerization. Containers are lightweight, isolated environments where applications run consistently regardless of the underlying system. Docker packages an application with all its dependencies in a container, solving "works on my machine" issues.

software devops
H

HTTP

HTTP stands for HyperText Transfer Protocol and is the protocol used for communication between a web browser and a web server. It defines how requests and responses are structured and exchanged. Without HTTP, the modern web would not exist.

frontend

HTTP Methods

HTTP methods (also called verbs) indicate the desired action to be performed on a resource. The main methods are GET for retrieving data, POST for creating new resources, PUT for replacing resources entirely, PATCH for partial updates, and DELETE for removing resources. Using the correct method is essential for RESTful API design and clearly communicates intent to servers and developers.

frontend backend

Hi-Fi Wireframe

A hi-fi (high-fidelity) wireframe or mockup is a detailed, polished representation of a user interface that closely resembles the final product. It includes actual or realistic content, real images, exact brand colors, proper typography, spacing, and often interactive elements. Hi-fi designs are created after concepts are validated and serve stakeholder presentations, user testing, and developer handoff.

design ux
J

JSON

JSON (JavaScript Object Notation) is a lightweight data interchange format that is easy for humans to read and write, and easy for machines to parse and generate. Despite its name, JSON is language-independent and is used across virtually all programming languages for data exchange between servers and web applications, APIs, and configuration files.

frontend backend javascript

JWT

JWT (JSON Web Token) is a compact, URL-safe token format used for securely transmitting information between parties as a JSON object. It consists of three base64-encoded parts separated by dots: a header specifying the algorithm, a payload containing claims like user ID and expiration time, and a cryptographic signature for verification. JWTs enable stateless authentication.

frontend backend

JavaScript

JavaScript is a dynamic programming language originally developed for web browsers. It enables interactive web pages and is now also used server-side (Node.js). JavaScript is essential for modern web development and supports both functional and object-oriented programming.

programming frontend software
M

MVC

MVC (Model-View-Controller) is an architectural pattern that separates application logic into three interconnected components. The Model manages data and business logic, the View handles the display and user interface, and the Controller processes user input and coordinates between Model and View. This separation makes code more organized, testable, and maintainable across teams.

backend

Middleware

Middleware is software that sits between incoming requests and your route handlers in a web application, processing requests before they reach your business logic and optionally modifying responses before they are sent to clients. Common middleware handles authentication, logging, error handling, request body parsing, compression, rate limiting, and adding security headers to responses.

backend

MySQL

MySQL is an open-source relational database management system that uses Structured Query Language (SQL) to manage data. It organizes data into tables with rows and columns, supports relationships between tables through foreign keys, and is known for its reliability, performance, and ease of use. MySQL is a core component of the popular LAMP and LEMP stacks.

database backend
P

PHP

PHP (Hypertext Preprocessor) is a widely-used server-side scripting language designed specifically for web development. It can be embedded directly into HTML and executes on the server before the page is sent to the browser, making it invisible to users. PHP powers major platforms like WordPress, Facebook, and Wikipedia, and integrates seamlessly with databases like MySQL.

backend

POST

POST is an HTTP method used to send data to a server to create a new resource or trigger a process. Unlike GET, POST includes data in the request body rather than the URL, allowing for larger and more complex data including files. POST is not idempotent, meaning submitting the same request twice typically creates two separate resources or triggers an action twice.

frontend backend

PUT

PUT is an HTTP method used to update or completely replace an existing resource on the server. When sending a PUT request, you provide the complete new version of the resource, and the server replaces the old version entirely. PUT is idempotent, so sending the same PUT request multiple times has the same effect as sending it once, making it safe to retry failed requests.

frontend backend
R

REST

REST (Representational State Transfer) is an architectural style for designing APIs. RESTful APIs use HTTP methods (GET, POST, PUT, DELETE) to perform CRUD operations on resources. They are stateless, which means each request contains all information needed to process it.

programming backend

React

React is a JavaScript library developed by Meta (Facebook) for building user interfaces, particularly single-page applications. It uses a component-based architecture where UIs are built from independent, reusable pieces. React's virtual DOM efficiently updates only changed elements, and its declarative approach lets developers describe what the UI should look like for any given state.

frontend javascript

Responsive Design

Responsive design is an approach to web development that ensures websites look and function well on all devices and screen sizes, from mobile phones to large desktop monitors. It uses flexible grids, fluid images, and CSS media queries to adapt the layout and content presentation based on the viewport dimensions, providing optimal user experience everywhere.

css mobile
S

SEO

SEO (Search Engine Optimization) is the practice of improving a website's visibility and ranking in search engine results pages through various techniques. It involves optimizing content with relevant keywords, improving HTML structure and metadata, ensuring fast page load times, making sites mobile-friendly, and building quality backlinks from reputable sources.

marketing

SQL Injection

SQL injection is a code injection attack where malicious SQL statements are inserted into input fields, potentially allowing attackers to read, modify, or delete database data, bypass authentication, or even execute system commands. It exploits applications that concatenate user input directly into SQL queries instead of using parameterized queries or prepared statements.

database

Semantic HTML

Semantic HTML means using HTML elements that clearly describe their meaning and purpose in the document structure. Instead of generic div and span elements everywhere, semantic tags like header, nav, main, article, section, aside, and footer communicate the role of content to browsers, search engines, and assistive technologies like screen readers.

html accessibility