How to assert that input value is truthy with cypress

Question

I have some input

<input />

How to assert that input has truthy value?

I think it's possible with

cy('input').should('not.have.value', '')

but I think it's slightly unreliable. Or maybe not. But anyway, would be nice to know some other way to check for truthy value.

Answer 1

Just found that invoke thing, so it's possible to do so:

cy.get('input').invoke('val').should("be.ok");
cy.get('input').invoke('val').should('not.be.empty') // works in the same way.

invoke is the way to call functions (jquery command in that case).