1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
/* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/licenses/publicdomain/ */
// To JSON.stringify, symbols are the same as undefined.
var symbols = [
Symbol(),
Symbol.for("ponies"),
Symbol.iterator
];
for (var sym of symbols) {
assertEq(JSON.stringify(sym), undefined);
assertEq(JSON.stringify([sym]), "[null]");
// JSON.stringify skips symbol-valued properties!
assertEq(JSON.stringify({x: sym}), '{}');
// However such properties are passed to the replacerFunction if any.
var replacer = function (key, val) {
assertEq(typeof this, "object");
if (typeof val === "symbol") {
assertEq(val, sym);
return "ding";
}
return val;
};
assertEq(JSON.stringify(sym, replacer), '"ding"');
assertEq(JSON.stringify({x: sym}, replacer), '{"x":"ding"}');
}
if (typeof reportCompare === 'function')
reportCompare(0, 0, 'ok');
|
