📘 Student Management System – JavaScript Arrays CRUD

📌 Project Description

This project is a JavaScript-based Student Management System created to practice and demonstrate CRUD operations and array manipulation using pure JavaScript.

The system manages a list of students using an array of objects, where each student contains the following properties:

• id – unique student identifier
• name – student’s full name
• age – student’s age
• gender – male or female
• grade – the academic level/class

The project starts with three mandatory students, and additional students can only be added through the addStudent() function.

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🎯 Objectives

The goal of this project is to demonstrate understanding of:

• JavaScript arrays & objects
• CRUD operations (Create, Read, Update, Delete)
• Input validation (age, gender, duplicates, etc.)
• Using array methods such as:
  • push()
  • find()
  • findIndex()
  • filter()
  • sort()
  • reduce()
• Sorting and filtering data
• Printing results using console.log()

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🧠 Core Functionalities

• Create: Add a new student with validation
• Read: Get all students or a single student by ID
• Update: Modify name, age, gender, or grade of an existing student
• Delete: Remove a student by ID
• Filter & Sort:
  • Get all male students
  • Sort students alphabetically by name
  • Retrieve the oldest student
  • Count students in Grade 11

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⚠ Rules Followed

• ❌ No Express
• ❌ No external libraries
• ✅ Pure JavaScript only
• ✅ Arrays & objects
• ✅ Starter array cannot be edited manually
• ✅ All results printed with console.log()

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📂 Purpose

This project acts as a simple data management program designed for beginners to understand how arrays can be used to store and manipulate structured information in JavaScript.

Video link: https://www.youtube.com/watch?v=Q_PL9ryDlDc

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