Compare two Arrays and replace Duplicates with values from a third array

Question

var array1 = [\'a\',\'b\',\'c\',\'d\'];
var array2 = [\'a\',\'v\',\'n\',\'d\',\'i\',\'f\'];

var array3 = [\'1\',\'2\',\'3\',\'4\',\'5\',\'6\'];

Just s

Answer 1

Use Array#map

array2.map((v, i) => v === array1[i] ? array3[i] : v);