DNA Pairing

Under normal circumstances, the nitrogen-containing bases adenine (A) and thymine (T) pair together, and cytosine (C) and guanine (G) pair together. The binding of these base pairs forms the structure of DNA.
In JavaScript, the split method allows you to split the string into an array of substrings based on a given pattern. The split() function takes one or two optional parameters, the first one being the separator, and the second the maximum number of elements to be included in the resulting array.
What is map() in JavaScript? In JavaScript, map() is a method of the Array object. It creates a new array by calling a function on every element of the original array and storing the results in a new array. map() returns the new array, and the original array is unchanged.