Custom commands in Cypress

Custom commands are those commands that are created by users. These commands are stored in support/commands.js file.

Cypress.Commands.add("login", (userid, password) => {
    //login to app
    cy.get("input[type='userid']").type(userid);
    cy.get("input[type='pass']").type(password);
    cy.contains("Login").click();
 });
                    

Once the custom command is created, you can invoke it as shown in below example.

describe('Softpost Test', function () {
    // test case
    it('Book flight', function (){
       cy.visit("https://www.booking.com/login");
       cy.login('123','xyz')
    });
 });