Given an item and an array, I would like to know if item exist in array.

item is a jQuery object, e.g. $(.c). You can assume that item.length == 1.

array is an array of jQuery objects, e.g. [$(.a), $(.b)]. Each item in this array may represent 0, 1, or more objects.

Here is how I thought to implement this: (live demo here)

function inArray(item, arr) {

    for (var i = 0; i < arr.length; i++) {

        var items = $.makeArray(arr[i]);



        for (var k = 0; k < items.length; k++) {

            if (items[k] == item[0]) {

                return true;

            }

        }

    }



    return false;

}

Can you find a more elegant implementation?

Example:

HTML:

<div class=a>Hello</div>

<div class=a>Stack</div>

<div class=a>Overflow</div>



<div class=b>Have</div>

<div class=b>a</div>

<div class=b>nice</div>

<div class=b>day!</div>



<div class=c>Bye bye</div>

JS:

console.log(inArray($(.a).eq(2), [$(.a), $(.b)])); // true

console.log(inArray($(.b).eq(3), [$(.a), $(.b)])); // true

console.log(inArray($(.c), [$(.a), $(.b)]));       // false

console.log(inArray($(.a).eq(2), [$(.b)]));          // false

console.log(inArray($(.a).eq(2), []));                 // false

console.log(inArray($(.c), [$(div)]));               // true