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28 lines
1.1 KiB
JavaScript
28 lines
1.1 KiB
JavaScript
// Copyright (C) 2016 André Bargull. 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-parsefloat-string
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description: >
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Leading U+180E is not recognized as whitespace
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info: |
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18.2.4 parseFloat (string)
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...
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3. Let trimmedString be a substring of inputString consisting of the
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leftmost code unit that is not a StrWhiteSpaceChar and all code units
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to the right of that code unit. (In other words, remove leading white
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space.) If inputString does not contain any such code units, let
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trimmedString be the empty string.
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4. If neither trimmedString nor any prefix of trimmedString satisfies the
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syntax of a StrDecimalLiteral (see 7.1.3.1), return NaN.
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...
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features: [u180e]
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---*/
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var mongolianVowelSeparator = "\u180E";
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assert.sameValue(parseFloat(mongolianVowelSeparator + "1.1"), NaN, "Single leading U+180E");
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assert.sameValue(parseFloat(mongolianVowelSeparator + mongolianVowelSeparator + mongolianVowelSeparator + "1.1"), NaN, "Multiple leading U+180E");
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assert.sameValue(parseFloat(mongolianVowelSeparator), NaN, "Only U+180E");
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