JavaScript - nameFormatting.txt

given an array of object like this: ([ {name: 'Bart'}, {name: 'Lisa'}, {name: 'Maggie'} ], return properly formatted.
empty array return: “”
array with one object return : “Name”
	with 2 objects return : “Name1 & Name2”
	with 3+ objects return : “Name1, Name2, ...  Name[n-1] & Name[n]”


- - - - - my solution - - - - -

function list(names){
  return names.reduce(function(prev, current, index, array){
    if (index === 0){
      return current.name;
    }
    else if (index === array.length - 1){
      return prev + ' & ' + current.name;
    } 
    else {
      return prev + ', ' + current.name;
    }
  }, '');
 }


- .reduce to apply function to all elements
 - takes in four parameters
 - with one elements do . . .
 - when one from the end, return ‘prev & current’
 - earlier return ‘prev, current’



- - - - alt - - - - 

function list( names ){
  return names.reduce(function(prev, curr, i, arr){
    return prev + curr.name + (i<arr.length-2?', ':i==arr.length-2?' & ':'');
  }, '');
}

- nested ternary statements looking at arr length
- kinda difficult to read but succinct.