Javascript Data Type How to - Use array.indexOf to search object








Question

We would like to know how to use array.indexOf to search object.

Answer


<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'>
<!--from   ww w. j  a v a2 s  . com-->
var arr = new Array({
    x: 1,
    y: 2
}, {
    x: 3,
    y: 4
});
function myIndexOf(o) {
    for (var i = 0; i < arr.length; i++) {
        if (arr[i].x == o.x && arr[i].y == o.y) {
            return i;
        }
    }
    return -1;
}
document.writeln(myIndexOf({x:3, y:4}));

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

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