[1] ECMAScript® 2017 Language Specification ( (5/13/2016, 3:55:22 PM)) <https://tc39.github.io/ecma262/#sec-algorithm-conventions>
[2] Add the ability to construct a callback function (domenic著, 3/27/2017, 4:42:03 AM) <https://github.com/heycam/webidl/commit/36b3646ac02654626b575ac9891b6e9d75adbfe7>
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