We would like to know how to use array.indexOf to search object.
<!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>
The code above is rendered as follows: