/*Your team is writing a fancy new text editor and you've been tasked with implementing the line numbering. Write a function which takes a list of strings and returns each line prepended by the correct number. The numbering starts at 1. The format is n: string. Notice the colon and space in between.*/ var number=function(array){ return array.map((element, index)=>{ return index + 1 + ": " + element; }) }