對(duì)于 Property Shadowing，我對(duì)它到底是什么感到有點(diǎn)困惑。這是否意味著如果存在內(nèi)部屬性，則不會(huì)反映原型？let foo = function() {    this.word = "HI!";}foo.prototype.word = function() {     return "123456";}let test = new foo();// does this return "HI!" rather than "123456" because `word` exists as an // internal property and that takes importance vs. the prototype?test.word;  // "HI!";