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ES2015 spec made an incompatible change, many builtin prototypes became no longer valid instances of their respective classes. But unfortunately it broke the web, so ES2016 reverted String, Boolean and Number prototype to the original behaviour (ES5.1). JerryScript should match the latest spec. references: - ES11 19.3.3 Properties of the Boolean Prototype Object - ES11 20.1.3 Properties of the Number Prototype Object - ES11 21.1.3 Properties of the String Prototype Object JerryScript-DCO-1.0-Signed-off-by: Csaba Osztrogonác oszi@inf.u-szeged.hu
24 lines
1020 B
JavaScript
24 lines
1020 B
JavaScript
/* Copyright JS Foundation and other contributors, http://js.foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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assert (Object.prototype.toString.call (String.prototype) === '[object String]');
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assert (String.prototype.toString() === "");
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assert (Object.prototype.toString.call (Boolean.prototype) === '[object Boolean]');
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assert (Boolean.prototype.valueOf() === false);
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assert (Object.prototype.toString.call (Number.prototype) === '[object Number]');
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assert (Number.prototype.valueOf() === 0);
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