From landing page redirect to slide menu page

Hi!

I am just starting to learn Ionic framework. We have an assignment to make an hybrid app. So when user open the app, there is one landing page last for about 1 second, then it redirect directly to the slide menu page. I know how to redirect url. I tried with www folder, add one landingPage.html and in js folder, I add snippet like this :
.state(‘app’, {
url: “/app”,
abstract: true,
templateUrl: “templates/landingPage.html”,
controller: ‘AppCtrl’
})
//and change the menu html like this,
.state(‘app.menu’, {
url: "/menu"
views: {
‘menuContent’: {
templateUrl: “templates/menu.html”
}
}
})
//followed by the default code

.state(‘app.search’, {
url: “/search”,
views: {
‘menuContent’: {
templateUrl: “templates/search.html”
}
}
})

// redirect js code is similar like this

function Redirect() {
window.location="./menu.html";
}
document.write(“You will be redirected to our main page in 1 seconds!”);
setTimeout(‘Redirect()’, 1000)

// I guess I made in a wrong way, could anybody kindly teach me how to arrange thing like this in app js part as well as this redirect part. Do I need to make any changes to controller part?

Tks!