concat() - JavaScript Array Method

The concat() method concatenates arrays together. You can concatenate as many arrays together as you want. The result of the concatenation creates a new array and the original array is not modified. You can chain the methods together to do this or you can pass in multiple arrays, comma separated. Be aware that after you concatenate, your result array may not be sorted in the order that you want. You may need to call sort() on it afterwards.

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