|
1 // set.keys() and set.values() return iterators over the elements |
|
2 // and set.entries() returns an iterator that yields pairs [e, e]. |
|
3 |
|
4 load(libdir + "iteration.js"); |
|
5 |
|
6 var data = [1, 2, 3, 4]; |
|
7 var s = Set(data); |
|
8 |
|
9 var ki = s.keys(); |
|
10 assertIteratorNext(ki, 1); |
|
11 assertIteratorNext(ki, 2); |
|
12 assertIteratorNext(ki, 3); |
|
13 assertIteratorNext(ki, 4); |
|
14 assertIteratorDone(ki, undefined); |
|
15 |
|
16 assertEq([...s.keys()].toSource(), data.toSource()); |
|
17 assertEq([...s.values()].toSource(), data.toSource()); |
|
18 assertEq([...s.entries()].toSource(), [[1, 1], [2, 2], [3, 3], [4, 4]].toSource()); |