Add example for stubbing typing username and password into window.prompt

[SofiulAlam]

Hi,

I am very new to Cypress and spend half days looking examples on how to send text in prompt.
I have tried below code but getting error.
cy.visit('http://localhost:3000')
cy.window().then((win) => {
cy.stub(win, 'prompt').returns('username', 'password')
})

Requirements:

I need to enter username and password and click the window prompt submit button or close the window without entering username and password . Any ideas please?

Thanking you in advanced.

Kind Regards,

Sofiul