| // Copyright (C) 2015 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| es6id: 23.1.3.10 |
| description: > |
| Returns count of present values inserted via iterable argument. |
| info: | |
| get Map.prototype.size |
| |
| 5. Let count be 0. |
| 6. For each Record {[[key]], [[value]]} p that is an element of entries |
| a. If p.[[key]] is not empty, set count to count+1. |
| features: [Symbol] |
| ---*/ |
| |
| var map = new Map([ |
| [0, undefined], |
| [undefined, undefined], |
| [false, undefined], |
| [NaN, undefined], |
| [null, undefined], |
| ['', undefined], |
| [Symbol(), undefined], |
| ]); |
| |
| assert.sameValue(map.size, 7, 'The value of `map.size` is `7`'); |