mirror of https://github.com/tc39/test262.git
28 lines
986 B
JavaScript
28 lines
986 B
JavaScript
// Copyright (C) 2016 the V8 project authors. 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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es6id: 19.2.4.1
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description: Subclassed Function instances has length and name properties
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info: |
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19.2.4.1 length
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The value of the length property is an integer that indicates the typical
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number of arguments expected by the function. However, the language permits
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the function to be invoked with some other number of arguments. The behaviour
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of a function when invoked on a number of arguments other than the number
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specified by its length property depends on the function. This property has
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the attributes { [[Writable]]: false, [[Enumerable]]: false,
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[[Configurable]]: true }.
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includes: [propertyHelper.js]
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---*/
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class Fn extends Function {}
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var fn = new Fn('a', 'b', 'return a + b');
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assert.sameValue(fn.length, 2);
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verifyNotEnumerable(fn, 'length');
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verifyNotWritable(fn, 'length');
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verifyConfigurable(fn, 'length');
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