Closed Bug 500909 Opened 15 years ago Closed 11 years ago

The scope of a function in the RHS of a let expression/statement includes the LHS of it

Categories

(Core :: JavaScript Engine, defect)

Product:
Core
Component:
JavaScript Engine
Platform:
x86
Windows XP
Type:
defect
Priority:
Not set
Severity:
normal

Tracking

()

Status:
RESOLVED FIXED

People

(Reporter: nanto, Unassigned)

Details

From bug 462385 comment 3
> var o = { x: "out of let" };
> let (o = { y: function () { return o.x; }, x: "rhs of let" }) alert(o.y());
> 
> This outputs "rhs of let".

More simply,

  var x = 42;
  let (x = (function () { return x; })()) print(x);

Expects 42 to be output but actually gets undefined.

Confirmed in Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2a1pre) Gecko/20090626 Minefield/3.6a1pre
Version: unspecified → Trunk
Status: NEW → RESOLVED
Closed: 11 years ago
Resolution: --- → FIXED
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