Harshil Chovatiya - Day 1 and 2: Introduction to Programming, Variables, and Data Types in JavaScript

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Harshil Chovatiya - Day 1 and 2: Introduction to Programming, Variables, and Data Types in JavaScript

Harshil Chovatiya - Day 1 and 2: Introduction to Programming, Variables, and Data Types in JavaScript

Day 1. Introduction to Programming

Overview:

  • Programming is the process of instructing a computer to perform tasks through a set of instructions or code.
  • It is a powerful skill with a wide range of applications in various fields.

In-Depth:

                        
                        
  // Sample code for Introduction to Programming
  function helloWorld() {
      console.log("Hello, World!");
  }
  helloWorld();

Programming involves writing a series of instructions in a specific programming language to solve problems, automate tasks, or create software. These instructions are known as code and are executed by a computer.

Why learn programming?

  • Programming is a fundamental skill in the digital age, empowering individuals to interact with and control technology.
  • It enables automation, data analysis, and software development for diverse purposes.
  • Career opportunities in software development, data science, web development, and more.
  • Problem-solving and logical thinking skills are honed through programming.

Introduction to programming languages:

  • Programming languages are tools that humans use to communicate instructions to computers.
  • Examples include Python, Java, C++, JavaScript, and many others, each with its own strengths and use cases.
  • Some languages are more suitable for specific tasks, like web development (JavaScript) or data analysis (Python).
  • The choice of language depends on the project's requirements and the programmer's preferences.

Day 2. Variables and Data Types in JavaScript

Overview:

  • Variables are used to store data in JavaScript.
  • JavaScript supports various data types, including numbers, strings, and booleans.

In-Depth:

What are variables?

  • Variables are containers for storing data.
  • You can think of them as named storage locations in your code.
  • In JavaScript, you declare a variable using the `var`, `let`, or `const` keyword.
                        
                        
 // Sample code for Variables and Data Types
var age = 19;
let name = "Harshil Chovatiya";
const PI = 3.14;

Common data types in JavaScript:

  • Numbers: Used for numeric values.
  • Strings: Used for text.
  • Booleans: Used for true/false values.

Example for Numbers:

                            
                            
 // Example of a number variable
var age = 30;
var price = 19.99;

Example for Strings:

                            
                            
// Example of a string variable
var name = "Harshil";
var message = 'Hello, How are You!';

Example for Booleans:

                            
                            
// Example of boolean variables
var isStudent = true;
var isWorking = false;

Variable naming conventions:

  • Variable names are case-sensitive and can consist of letters, digits, underscores, or dollar signs.
  • They must start with a letter, underscore, or dollar sign (not a digit).
  • Common naming conventions include using camelCase or underscores.
                        
                        
var firstName = "Harshil"; // Type Camel case
var last_name = "Chovatiya";  //Type Underscore

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