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example.js
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40 lines (34 loc) · 746 Bytes
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var cu = require('./');
// function App() {}
// Object.defineProperty(App.prototype, 'count', {
// get: function () {
// return Object.keys(this).length;
// }
// });
// console.log(cu.getDescriptor(App.prototype, 'count'));
function defineProp (obj, name, fn) {
Object.defineProperty(obj, name, {
enumerable: true,
configurable: true,
get: function () {
return fn();
}
});
}
function fn() {
console.log('hey!');
return function (msg) {
return 'foo ' + msg;
};
}
var one = {
bar: function (msg) {
return 'bar ' + msg;
}
};
var two = {};
defineProp(one, 'foo', fn);
cu.copyDescriptor(two, one, 'foo');
cu.copyDescriptor(two, one, 'bar');
console.log(two.foo('a'))
console.log(two.bar('b'))