Answers for "how to get the window width and height in javascript"

how to get the height of window in javascript

//get screen height of the device by using
window.innerHeight
//get screen width of the device by using
window.innerWidth

Javascript get element height and width

var width = document.getElementById('myID').offsetWidth;//includes margin,border,padding
var height = document.getElementById('myID'). offsetHeight;//includes margin,border,padding

Make a VStack fill the width of the screen in SwiftUI

struct ContentView : View {
        var body: some View {
            VStack(alignment: .leading) {
                Text("Hello World")
                    .font(.title)
                Text("Another")
                    .font(.body)
                Spacer()
            }
            .frame(minWidth: 0, maxWidth: .infinity, minHeight: 0, maxHeight: .infinity, alignment: .topLeading)
            .background(Color.red)
        }
    }

get window height javascript

<p id="demo"></p>

<script>
document.getElementById("demo").innerHTML = 
"Screen width is " + screen.width;
</script>