test262/test/built-ins/Number/string-numeric-separator-li...

29 lines
715 B
JavaScript

// Copyright (C) 2017 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: prod-NumericLiteralSeparator
description: NumericLiteralSeparator is not valid on string conversions for ToNumber operations
info: |
DecimalDigits `.` DecimalDigits ExponentPart_opt `+` DecimalDigits
NumericLiteralSeparator ::
_
DecimalLiteral ::
DecimalIntegerLiteral . DecimalDigits_opt ExponentPart_opt
DecimalDigits ::
...
DecimalDigits NumericLiteralSeparator DecimalDigit
SignedInteger ::
...
+ DecimalDigits
...
features: [numeric-separator-literal]
---*/
assert.sameValue(Number("1.0e+10_0"), NaN, "1.0e+10_0");