> On Nov 13, 2016, at 10:49 AM, Isiah Meadows <[email protected]> wrote: > > Firefox likely has a parser bug (it should never throw a ReferenceError in > that situation). > > FireFox is correct, Chrome is wrong. See the second early error rule at http://www.ecma-international.org/ecma-262/7.0/index.html#sec-assignment-operators-static-semantics-early-errors <http://www.ecma-international.org/ecma-262/7.0/index.html#sec-assignment-operators-static-semantics-early-errors>
It is an early Reference <http://www.ecma-international.org/ecma-262/7.0/index.html#sec-reference-specification-type> Error if LeftHandSideExpression <http://www.ecma-international.org/ecma-262/7.0/index.html#prod-LeftHandSideExpression> is neither an ObjectLiteral <http://www.ecma-international.org/ecma-262/7.0/index.html#prod-ObjectLiteral> nor an ArrayLiteral <http://www.ecma-international.org/ecma-262/7.0/index.html#prod-ArrayLiteral> and IsValidSimpleAssignmentTarget of LeftHandSideExpression <http://www.ecma-international.org/ecma-262/7.0/index.html#prod-LeftHandSideExpression> is false.
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