| // Copyright (C) 2015 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| es6id: 23.1.3.3 |
| description: > |
| Returns true when deletes an entry. |
| info: | |
| Map.prototype.delete ( key ) |
| |
| 4. Let entries be the List that is the value of M’s [[MapData]] internal slot. |
| 5. Repeat for each Record {[[key]], [[value]]} p that is an element of entries, |
| a. If p.[[key]] is not empty and SameValueZero(p.[[key]], key) is true, then |
| i. Set p.[[key]] to empty. |
| ii. Set p.[[value]] to empty. |
| iii. Return true. |
| ... |
| ---*/ |
| |
| var m = new Map([ |
| ['a', 1], |
| ['b', 2] |
| ]); |
| |
| var result = m.delete('a'); |
| |
| assert(result); |
| assert.sameValue(m.size, 1); |
