Web Development Basics Quiz

The color property is used to change the text color in HTML. It can be applied inline or via CSS.

The class attribute groups elements together for styling. Multiple elements with the same class can share the same style.

The <table> tag is used to create a table structure and display tabular data on an HTML page.

The marquee tag created scrolling text or images, but is deprecated and no longer recommended for modern websites.

CSS display properties control how elements are rendered (positioned, sized, etc.). Examples include block, inline, flex, grid, and none.

The A in rgba(R, G, B, A) represents the Alpha channel, which controls the opacity of the color. It ranges from 0 (fully transparent) to 1 (fully opaque).

In the CSS shorthand margin property, the values correspond to top, right, bottom, and left margins in that order (clockwise).

CSS properties like font-family, font-size, color, text-align, etc., control the appearance of text on a webpage.

A configuration file that stores metadata about a Node.js project, such as dependencies, scripts, and versioning information.

Processes created by the Node.js runtime using the child_process module to execute tasks in parallel, like running scripts or commands.

A technique for scaling Node.js applications by distributing tasks to multiple worker processes, managed by a central master process.

A popular JavaScript framework built on TypeScript, focused on creating dynamic web applications with features like MVC architecture, two-way data binding, and dependency injection.

The smallest building block of a UI in Angular, consisting of a HTML template and related logic (TypeScript) to control its behavior.

A feature in Angular that manages navigation between different views or components in a single-page application.

Data can be exchanged between components using mechanisms like @Input and @Output decorators, services for shared data, and passing data through routing.

A performance optimization technique where components or modules are loaded only when needed, improving initial loading times.

Methods that execute at specific moments in a component's lifecycle, allowing you to respond to events like component creation, rendering, or destruction.

Functions that control access to routes in an Angular application, preventing unauthorized navigation based on conditions.

An error that occurs when a variable or object is accessed but does not exist in the current scope.

The area in which variables and functions are accessible. Different scopes can exist within functions (local) or outside (global).

A built-in function that delays the execution of a callback function for a specified time.

A shorthand for writing conditional statements in a single line, often used to assign values based on a condition.

Global variables are accessible from anywhere in the script, while local variables are only accessible within the scope of their function.

A CSS property that completely hides an element from the page, removing it from the layout flow. This means the element takes up no space and does not affect the layout of other elements.

A CSS property that hides an element but maintains its space in the layout. The element is visually hidden but still takes up space, affecting the positioning of other elements.

This CSS property controls what happens to content that extends beyond the boundaries of its containing element. It determines whether content is clipped, scrolled, or handled in other ways.

JavaScript has eight primitive data types: Number, String, Boolean, Undefined, Null, Symbol, BigInt, and Object. These types define the kind of data a variable can hold.

In JavaScript, '==' compares values loosely, performing type coercion if necessary. '===' compares values strictly, requiring both value and type to be the same.

Scope in JavaScript determines the accessibility of variables within a program. Variables defined within a function are accessible only within that function (function scope), while variables declared within blocks (e.g., inside a loop) have block scope.

The Scope Chain in JavaScript allows variables from outer scopes to be accessed by inner scopes. It's a hierarchical path used to look up variables during execution.

A callback in JavaScript is a function passed as an argument to another function. It's invoked later when the original function is completed.

The Document Object Model (DOM) in JavaScript is a programming interface for HTML and XML documents. It represents web pages as a tree structure of objects, where each object corresponds to an HTML element.

Async/await in JavaScript are keywords used for asynchronous programming. Async declares a function that always returns a promise. Await is used within an async function to pause execution until a promise resolves.

Arrow functions in JavaScript are a concise way to define functions using => syntax. They don't have their own 'this' binding or arguments object.

These keywords define variables in JavaScript. var has function scope, while let and const have block scope. let allows reassignment, while const does not. Variables declared with var are hoisted but initialized as undefined.

Node.js is fundamentally single-threaded in its JavaScript execution. It handles I/O operations using a non-blocking, event-driven approach, allowing it to efficiently handle multiple concurrent requests.

npm (Node Package Manager) is a package manager used for installing, managing, and sharing JavaScript libraries and packages within Node.js projects.

Middleware in Node.js are functions that execute during the lifecycle of an HTTP request. They intercept requests and responses, modifying or adding functionality.

The event loop in Node.js is a single-threaded process that handles asynchronous operations. It continuously checks for pending events and executes them when ready.

A configuration file in Node.js projects, package.json stores project metadata, dependencies, and scripts. It describes the project and its components.