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13 lines
477 B
JavaScript

6 years ago
'use strict';
// https://github.com/tc39/proposal-promise-try
var $export = require('./_export');
var newPromiseCapability = require('./_new-promise-capability');
var perform = require('./_perform');
$export($export.S, 'Promise', { 'try': function (callbackfn) {
var promiseCapability = newPromiseCapability.f(this);
var result = perform(callbackfn);
(result.e ? promiseCapability.reject : promiseCapability.resolve)(result.v);
return promiseCapability.promise;
} });