JavaScript/loop.html at master · kunalgarg081/JavaScript · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>loop</title>
</head>
<body>
    <h1 id="hw">Hello duniya</h1>
    <script>
        var ar = [2,4,5,7,9,"world", {a:"Hello"}]
        for(var i in ar){
            console.log(ar[i]); //print with index
        }
        for(var i of ar){
            console.log(i); //print without index
        }
        console.log(ar[6].a) //printing an elememt of object of array
        ar[6].b = "kunal" //adding an element in object
        console.log(ar[6])
        for(var i=0;i<10;i++){

            let hw = document.getElementById("hw")
            console.log(hw)
        }

</script>
</body>
</html>