javascript - Is there any way to rename js object keys using underscore.js

Question

I need to convert a js object to another object for passing onto a server post where the names of the keys differ for example

var a = {
    name : "Foo",
    amount: 55,
    reported : false,
    ...
    <snip/>
    ...
    date : "10/01/2001"
    } 

needs to turn into

a = {
  id : "Foo",
  total : 55,
  updated: false,
  ...
  <snip/>
  ... 
  issued : "10/01/2001"
  }

where I have lookup obj available for mapping all the keys

var serverKeyMap = {
    name : "id",
    amount : "total",
    reported : "updated",
     ...
    date : "issue"
    }

Is there a function available in underscore.js or jQuery that I can use that does this functionality?

thanks

Answer 1

I know you didn't mention lodash and the answers already solve the problem, but someone else might take advantage of an alternative.

As @CookieMonster mentioned in the comments, you can do this with _.mapKeys:

_.mapKeys(a, function(value, key) {
    return serverKeyMap[key];
});

And the fiddle: http://jsfiddle.net/cwkwtgr3/