vue hello world项目
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var anObject = require('../internals/an-object');
var isObject = require('../internals/is-object');
var newPromiseCapability = require('../internals/new-promise-capability');
module.exports = function (C, x) {
anObject(C);
if (isObject(x) && x.constructor === C) return x;
var promiseCapability = newPromiseCapability.f(C);
var resolve = promiseCapability.resolve;
resolve(x);
return promiseCapability.promise;
};