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Alex Rivera
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I have a situation where I can choose to implement a collection of string keys as an object: $.each(objects, function (key, object) { collection[key] = "doesn't matter"; }); or an array: $.each(objects, function (key, object) { collection.push(key); }); I'd like to be able to quickly determine whether or not the collection contains a given key. If collection is an object, I can use: if (collection.hasOwnProperty(key_to_find)) { // found it!... } else { // didn't find it... } If collection is an array, I can use: if ($.inArray(key_to_find, collection)) { // found it!... } else { // didn't find it... } I'd imagine using JavaScript's built-in hasOwnProperty would be faster than jQuery's inArray(), but I'm not entirely sure. Does anyone know more about the performance differences between these two methods? Or, is there a more efficient alternative here that I am not aware of?
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