| // Copyright (C) 2015 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| es6id: 23.1.3.1 |
| description: > |
| Clears a Map. |
| info: | |
| Map.prototype.clear ( ) |
| |
| ... |
| 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. Set p.[[key]] to empty. |
| b. Set p.[[value]] to empty. |
| 6. Return undefined. |
| features: [Symbol] |
| ---*/ |
| |
| var m1 = new Map([['foo', 'bar'], [1, 1]]); |
| var m2 = new Map(); |
| var m3 = new Map(); |
| m2.set('foo', 'bar'); |
| m2.set(1,1); |
| m2.set(Symbol('a'), Symbol('a')); |
| |
| m1.clear(); |
| m2.clear(); |
| m3.clear(); |
| |
| assert.sameValue(m1.size, 0); |
| assert.sameValue(m2.size, 0); |
| assert.sameValue(m3.size, 0); |
