what does crud mean in programming code example

Example 1: crud applications means

Create , Read , Update , Delete
CRUD is an acronym for the four basic types of SQL commands: Create , Read , Update , Delete . Most applications have some kind of CRUD functionality, and we can assume that every programmer had to deal with CRUD at some point. A CRUD application is one that uses forms to get data into and out of a database.

Example 2: crud operations

Create, Read, Update and Delete are the main operations of CRUD.

Example 3: crud application in mean stack

// MongoDB Databse url
var mongoDatabase = 'mongodb://localhost:27017/employeeDetails';

// Connect Mongodb Database
mongoose.connect(mongoDatabase, { useNewUrlParser: true }).then(
 () => { console.log('Database is connected') },
 err => { console.log('There is problem while connecting database ' + err) }
);