JScript_array_object_part1/3.html at master · katerina-n/JScript_array_object_part1 · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Array3</title>
</head>
<body>
<script>
    var arr=[];

    for(var i=0; i<=10; i++){
        arr[i]=Math.round(Math.random()*10);
        document.write(arr[i]+" ");
    }

    var str=arr.join(" ");
    document.write("<br>"+str+"<br>");
    delete arr[0];
    for(var key in arr){
       document.write(arr[key]+" ");
    }
    arr.splice(8, 2, "New", "newOne", "newTwo");
    document.write("<br>");
    for(var k in arr){
        document.write(arr[k]+" ");
    }
    document.write("<br>");
    var newArray=arr.concat("Two", "Tree", "Four", "Five");
    for(var j in newArray){
        document.write(newArray[j]+" ");
    }
    </script>

</body>
</html>