More array methods

The following is an incomplete list of other array methods, none of which mutateThe process of changing data. the array.

Name	Meaning
`.concat(arrayOne, arrayTwo)`	returns a new array formed by concatenatingTo make a new one by gluing together two. `arrayOne` and `arrayTwo` to the array; one or more arguments can be used
`.toString()`	returns a string formed by concatenating all the items, using the string `","` between each consecutive pair
`.join(joiner)`	returns a string formed by concatenating all the items, using the string `joiner` between each consecutive pair
`.indexOf(item)`	returns the index of the leftmost occurrence of the item
`.lastIndexOf(item)`	returns the index of the rightmost occurrence of the item
`.slice(start, end)`	returns a new array formed including elements with index `start` up through `end - 1`
`.slice(start)`	returns a new array formed including elements with index `start` up through the end of the original array

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Hints:

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var animals = ["ape", "dog", "bee", "cat", "dog", "eel"];
var vegetables = ["carrot", "onion", "bean"];
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