Declaring variables inside loops (v11)

Revision 11 of this benchmark created on

Description

Tests whether declaring a variable inside a loop, rather than declaring outside and just assigning values, is more performant

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Testing in
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Declare in a loop with one statement
var sum;
var items=[1,2,3,4];
for (var i = 0; i < 5; i++) {
  var x = items[i];
  sum =sum + x;
}
ready
Declare outside loop
var i = 0;
var items=[1,2,3,4];
var x=0;
var sum=0;
for (i = 0; i < 5; i++) {
  x=items[i];
  sum =sum+x;
}
ready
Declare in a loop with multiple statements
var i = 0;
var items=[1,2,3,4];
var x=0;
var sum=0;
for (var i = 0; i < 5; i++) {
  sum += items[i];
}
ready

Revisions

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