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37 lines
1.4 KiB
JavaScript
37 lines
1.4 KiB
JavaScript
// Copyright (C) 2017 Igalia, S.L. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-bigint-parseint-string-radix
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description: Leading whitespace (U+2029)
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info: >
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BigInt.parseInt ( string, radix )
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The parseInt function produces a BigInt value dictated by
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interpretation of the contents of the string argument according to
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the specified radix.
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The algorithm is the same as 18.2.5 but with the following edits:
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* For all cases which result in returning NaN, throw a SyntaxError
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exception.
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* For all cases which result in returning -0, return 0n.
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* Replace the second to last step, which casts mathInt to a Number,
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with casting mathInt to a BigInt.
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18.2.5 parseInt ( string, radix )
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The parseInt function produces an integer value dictated by
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interpretation of the contents of the string argument according to
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the specified radix. Leading white space in string is ignored. If
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radix is undefined or 0, it is assumed to be 10 except when the
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number begins with the code unit pairs 0x or 0X, in which case a
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radix of 16 is assumed. If radix is 16, the number may also
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optionally begin with the code unit pairs 0x or 0X.
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features: [BigInt, arrow-function]
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---*/
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assert.sameValue(BigInt.parseInt("\u20291"), 1n);
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assert.sameValue(BigInt.parseInt("\u2029\u2029-1"), -1n);
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assert.throws(SyntaxError, () => BigInt.parseInt("\u2029"));
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