I'm sure there are many ways to achieve that but I'm looking for something elegant.

a = [

  'a',

  'b',

  'c'

];



magicArrayJoin(a, {value: 255} ); // insert the same object between each item



result ==  [

  'a',

  {value: 255},

  'b',

  {value: 255}

  'c'

];

All proposals are welcome. :)