Window in Js(Practical 11)

<!DOCTYPE html>
<html lang="en">
<head>
    <title>Practical #11</title>
</head>
<body>
    <h2>Practical #11 : Develop a webpage for placing a window on the screen and working with the child window.</h2>
    <hr>
    <button onclick="create_child()">Create Window</button>
    <button onclick="move_child()">Move Window</button>
    <button onclick="resize_child()">Resize Window</button>
    <button onclick="close_child()">close Window</button>
</body>
<script>
    var child_window
    function create_child(){
        child_window=window.open("","rating","width=10,heigth=0,left=150,right=200")
        child_window.resizeTo(200,200)
        

    }
    function close_child(){
        child_window.close()
    }
    function move_child(){
        child_window.moveTo(500,400)
    }
    function resize_child(){
        var width = prompt("Enter width")
        var height = prompt("Enter height")
        child_window.resizeTo(width,height)
    }
</script>
</html>
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