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30 lines
840 B
JavaScript
30 lines
840 B
JavaScript
// Copyright (C) 2015 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: 23.1.1.1
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description: >
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Creating a new Map object without arguments doesn't throw if `set` is not
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callable
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info: >
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Map ( [ iterable ] )
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When the Set function is called with optional argument iterable the following steps are taken:
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...
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5. If iterable is not present, let iterable be undefined.
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6. If iterable is either undefined or null, let iter be undefined.
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7. Else,
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a. Let adder be Get(map, "set").
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b. ReturnIfAbrupt(adder).
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c. If IsCallable(adder) is false, throw a TypeError exception.
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...
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8. If iter is undefined, return map.
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...
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---*/
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Map.prototype.set = null;
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var m = new Map();
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assert.sameValue(m.size, 0, 'The value of `m.size` is `0`');
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