Justin Ridgewell ca18ea5e79
Re-add optional chaining delete (#7257)
* Re-add optional chaining delete

* Move exec tests next to output tests

* Forgot to commit these
2018-01-24 11:26:02 -08:00

29 lines
345 B
JavaScript

"use strict";
const obj = {
a: {
b: {
c: {
d: 2,
},
},
},
};
const a = obj?.a;
assert.equal(a, obj.a);
const b = obj?.a?.b;
assert.equal(b, obj.a.b);
const bad = obj?.b?.b;
assert.equal(bad, undefined);
let val;
val = obj?.a?.b;
assert.equal(val, obj.a.b);
assert.throws(() => {
const bad = obj?.b.b;
});