| // Copyright (C) 2015 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| es6id: 23.1.3.5 |
| description: > |
| Verify the parameters order on the given callback. |
| info: | |
| Map.prototype.forEach ( callbackfn [ , thisArg ] ) |
| |
| ... |
| 5. If thisArg was supplied, let T be thisArg; else let T be undefined. |
| 6. Let entries be the List that is the value of M’s [[MapData]] internal slot. |
| 7. Repeat for each Record {[[key]], [[value]]} e that is an element of |
| entries, in original key insertion order |
| a. If e.[[key]] is not empty, then |
| i. Let funcResult be Call(callbackfn, T, «e.[[value]], e.[[key]], M»). |
| ... |
| ---*/ |
| |
| var map = new Map(); |
| map.set('foo', 42); |
| map.set('bar', 'baz'); |
| |
| var results = []; |
| |
| var callback = function(value, key, thisArg) { |
| results.push({ |
| value: value, |
| key: key, |
| thisArg: thisArg |
| }); |
| }; |
| |
| map.forEach(callback); |
| |
| assert.sameValue(results[0].value, 42); |
| assert.sameValue(results[0].key, 'foo'); |
| assert.sameValue(results[0].thisArg, map); |
| |
| assert.sameValue(results[1].value, 'baz'); |
| assert.sameValue(results[1].key, 'bar'); |
| assert.sameValue(results[1].thisArg, map); |
| |
| assert.sameValue(results.length, 2); |