JavaScript Core Concepts & Advanced Techniques
JavaScript Fundamentals: Web Storage & Event Handling
This section covers essential client-side data storage mechanisms and advanced event management techniques in JavaScript.
1. Web Storage (Local Storage & Session Storage)
Web Storage allows web applications to store data locally within the user’s browser. Unlike cookies, Web Storage offers a larger storage capacity (typically 5MB or more) and the data is not sent to the server with every HTTP request.
A. Local Storage – Permanent Data Storage
Data
Read MoreComputer Graphics Core Concepts: Display, Rendering, Algorithms
Display Technologies: Beam Penetration vs. Shadow Mask
| Beam Penetration | Shadow Mask |
|---|---|
| Used in older color CRTs. | Used in modern color CRTs/LCDs. |
| Two layers of phosphor (red & green); beam depth controls color. | Three separate phosphors (R, G, B) and a mask to direct beams. |
| Limited color range (4–7 colors). | Millions of colors possible. |
| Cheaper. | Higher cost. |
| Lower image quality. | High image quality. |
Graphics Rendering: Raster Scan vs. Vector Scan
| Raster Scan | Vector Scan |
|---|---|
| Displays image as a matrix of pixels. | Draws |
Verilog HDL, Memory Systems, and Error Correction Codes
Verilog HDL Lexical Conventions
Lexical conventions in Verilog define the basic rules for writing code. They include whitespace, comments, identifiers, keywords, numbers, strings, and operators. These elements form the fundamental structure of Verilog programs.
1. Whitespace
- Spaces, tabs, and newlines enhance readability.
- Ignored by the compiler/simulator except when part of a string literal.
2. Comments
//for single-line comments./* */for multi-line comments.- Used to describe code; they are not part
Java Programming Concepts: Constructors, Strings, Inheritance, and Features
Java Program to Demonstrate Parameterized Constructor
A parameterized constructor is used to initialize an object with user-defined values.
class Employee {
String name;
int id;
// Parameterized constructor
Employee(String empName, int empId) {
name = empName;
id = empId;
}
void display() {
System.out.println("Employee Name: " + name);
System.out.println("Employee ID: " + id);
}
public static void main(String[] args) {
Employee Set Theory and Graph Concepts Explained
Question 1: Set Operations
Given the universal set U = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}, and sets A = {2, 4, 6}, B = {1, 3, 5, 7}, C = {6, 7}.
(a) A’ ∩ B
(b) (A ∪ B) – C
(c) (A ∪ C)’
Essential Programming Principles and Structures
Fundamental Programming Concepts
Statements and Instructions
Each of the orders or commands within a program that include constants, variables, operators, and expressions are called statements or instructions.
Program Definition
A program is a set of commands that transform data into understandable output.
Programming Language
A programming language is a set of symbols and syntactic and semantic rules that define the structure and meaning of its elements and expressions.