// Copyright (C) 2020 Rick Waldron. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-assignment-operators description: > Strict Mode - SyntaxError is thrown if the identifier arguments appear as the LeftHandSideExpression of a Logical Assignment operator(??=) flags: [onlyStrict] negative: phase: parse type: SyntaxError features: [logical-assignment-operators] ---*/ $DONOTEVALUATE(); arguments ??= 20;