How can I continuo action from previous test it() in one .spec file?

[hanh202]

I'm write a scenario which have more action( each action is a testcase it()). However, I can inherit previous action between test it(). How can I do that? Please help me.
The code like that:
describe('scenario', () => {
before(() => {
// visit a login page
});

it('testcase 1', () => {
// input username
});
it('testcase 2', () => {
// input password
});
it('testcase 3', () => {
// click submit
});

it('testcase 4', () => {
// check result
});

});