Your first paragraph and second paragraph sound like two different specifications.
Let's try a concrete example. Assume you have these two arrays: [4,7,9,3,6] [3,6,9,3,7] What should the output be? > Is there a function that exists for the purpose of comparing > two arrays and returning the values that are different? The > arrays I'm comparing are likely to contain all the same > values but in a different order. From what I read in the > jQuery docs there is no function to compare array orders. > > I can think of a solution where I make a function to loop > through both arrays sequentially and simultaneously, > comparing each value pair and spitting out the ones that are > different. Does anyone know of a function that already does > this? If not, would it make a helpful plugin for jQuery?