javascript - Will a 'JavaScriptResult' return to an 'eval' in MVC and effect site performance? -

I was looking at some ways to redirect from an AJAX request and came to a solution:

  return JavaScript ("window.location = 'http://www.google.co.uk'"); I was told that it could be wrapped in an eval on its return, which can change the code and how the effectiveness can change.  
  eval "Window.location = 'http://www.google.co.uk"); // is actually executed  
 
 I was asked to change it to return the redirected URL. 
 
 Two questions about this: 
 
 1) In order to implement an 'success' through an AJAX request, will the compilation of other Javascript be affected? 
 
 2) When I  javascript   ActionResult  from my post? Does it eventually go inside a  eval  (fully)? MVC controller in [
 
  // [HTTP post] Public action MyAction () {back JsonResult ("window.location = 'url'"); } // javascript $ .ajax ({type: 'POST', url: '/ MyAction'});  
 

JavaScriptResult simply gives JavaScript to the customer, so that you For example, it should be & lt; Script & gt; element can be used by:

  & lt; Script src = "/ MyCoolController / GiveMeScript? Param5 = 7" & gt; & Lt; / Script & gt;  

This is how Javascript is executed depends on you.

I really do not know why eval () will show why the concern is to redirect your page to the page, but it seems like a very suspicious approach (Especially if it contains eval () ).

Why not just a Jason result that indicates a redirect using some pre-defined conference, and then your script works accordingly:

In the Administrator return < Code> // JsonResult (new {redirectTo = "http://www.google.co.uk"});

  // script $ .ajax ({type: 'POST', url: '...', success: work (results) {if (result.redirectTo) { Window.location = result.redirectTo;} // handle the result when there is no redirect ...}});