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By: a guest on Sep 22nd, 2012  |  syntax: None  |  size: 0.18 KB  |  hits: 25  |  expires: Never
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  1. var john = {
  2.   firstName: "John",
  3.   surname: "Smith"
  4. }
  5.  
  6. function func(a, b) {
  7.   alert( this[a] + ' ' + this[b] )
  8. }
  9.  
  10. func.call(john, 'firstName', 'surname')  // "John Smith"
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