Multiple var versus single var statements

JavaScript performance comparison

Test case created by BrynM

Info

Code style aside, is there any performance difference?

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Testing in unknown unknown
Test Ops/sec
multiple var statements
 
var a = 1;
var b = "b";
var c = true;
var d = null;
var e;
var f = undefined;
var g = [];
var h = new Array();
var i = {};
 pending…
single declaration, multi-line statement
 
var a = 1
  , b = "b"
  , c = true
  , d = null
  , e
  , f = undefined
  , g = []
  , h = new Array()
  , i = {};
 pending…
single declaration, multi-line statement (non-comma first)
 
var a = 1,
  b = "b",
  c = true,
  d = null,
  e,
  f = undefined,
  g = [],
  h = new Array(),
  i = {};
 pending…

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