title: How to save array value as globally and access to other modules in angular 4
body: <p>Am tried to save my http response in to one global variable and if I go to next page and come back again the same page the stored value was got null/Undefined</p>
  <p>Now how to save my response array in global and access it back again with out loss in Angular 4.</p>
  <p>Thanks.</p>