CRUD OPERATIONS IN JAVASCRIPT

CRUD:

CRUD stands for Create, Read, Update, and Delete, which are the four foundational operations required to manage persistent data in any application.

CREATE: Adds a new item or object.

let student = {
    name: "Radha",
    age: 23,
    city: "Chennai"
};


//**Create**: student.gender="male";

Console.log(student);

OUTPUT: { name: 'Radha', age: 23, city: 'Chennai', gender:'male'}

READ: Retrieves or displays existing data.

let student = {
    name: "Radha",
    age: 23,
    city: "Chennai"
};

console.log(student.name);
console.log(student.age);

OUTPUT: {name:"Radha", age:23}

UPDATE: Modifies existing data.

let student = {
    name: "Radha",
    age: 23,
    city: "Chennai"
};

student.age=24;
student.city= "pudukkottai";


console.log(student)

OUTPUT: { name: 'Radha', age: 24, city: 'pudukkottai' }

DELETE: Removes existing data.

let student = {
    name: "Radha",
    age: 23,
    city: "Chennai"
};

delete student.city;

console.log(student);

OUTPUT: { name: 'Radha', age: 24 }