@writetome51/array-replace-middle

This function replaces items in the middle of the array and returns void.

Example: if array is [1,2,3,4,5,6,7] , and you call replaceMiddle(2, [9,10], array) , the result will be [1,2,9,10,6,7] . It preserves the first 2 items and the last 2. newValues doesn't have to be same length as number of items it's replacing.

Usage:

replaceMiddle(numItemsToPreserveAtEachEnd, newValues, arrayToModify);